diff --git a/internal/api/cache.go b/internal/api/cache.go
index e30d3f3a0..9bb66f20e 100644
--- a/internal/api/cache.go
+++ b/internal/api/cache.go
@@ -57,7 +57,7 @@ func RemoveFromFolderCache(rootName string) {
 func RemoveFromAlbumCoverCache(uid string) {
 	cache := service.CoverCache()
 
-	for typeName := range thumb.Types {
+	for typeName := range thumb.Sizes {
 		cacheKey := CacheKey(albumCover, uid, typeName)
 
 		cache.Delete(cacheKey)
diff --git a/internal/api/covers.go b/internal/api/covers.go
index e831b61f5..1d7283cba 100644
--- a/internal/api/covers.go
+++ b/internal/api/covers.go
@@ -38,7 +38,7 @@ func AlbumCover(router *gin.RouterGroup) {
 		typeName := c.Param("type")
 		uid := c.Param("uid")
 
-		thumbType, ok := thumb.Types[typeName]
+		size, ok := thumb.Sizes[typeName]
 
 		if !ok {
 			log.Errorf("%s: invalid type %s", albumCover, typeName)
@@ -92,8 +92,8 @@ func AlbumCover(router *gin.RouterGroup) {
 		}
 
 		// Use original file if thumb size exceeds limit, see https://github.com/photoprism/photoprism/issues/157
-		if thumbType.ExceedsSizeUncached() && c.Query("download") == "" {
-			log.Debugf("%s: using original, size exceeds limit (width %d, height %d)", albumCover, thumbType.Width, thumbType.Height)
+		if size.ExceedsLimit() && c.Query("download") == "" {
+			log.Debugf("%s: using original, size exceeds limit (width %d, height %d)", albumCover, size.Width, size.Height)
 			AddCoverCacheHeader(c)
 			c.File(fileName)
 			return
@@ -101,10 +101,10 @@ func AlbumCover(router *gin.RouterGroup) {
 
 		var thumbnail string
 
-		if conf.ThumbUncached() || thumbType.OnDemand() {
-			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, f.FileOrientation, thumbType.Options...)
+		if conf.ThumbUncached() || size.Uncached() {
+			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, f.FileOrientation, size.Options...)
 		} else {
-			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, thumbType.Options...)
+			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, size.Options...)
 		}
 
 		if err != nil {
@@ -148,7 +148,7 @@ func LabelCover(router *gin.RouterGroup) {
 		typeName := c.Param("type")
 		uid := c.Param("uid")
 
-		thumbType, ok := thumb.Types[typeName]
+		size, ok := thumb.Sizes[typeName]
 
 		if !ok {
 			log.Errorf("%s: invalid type %s", labelCover, txt.Quote(typeName))
@@ -202,8 +202,8 @@ func LabelCover(router *gin.RouterGroup) {
 		}
 
 		// Use original file if thumb size exceeds limit, see https://github.com/photoprism/photoprism/issues/157
-		if thumbType.ExceedsSizeUncached() {
-			log.Debugf("%s: using original, size exceeds limit (width %d, height %d)", labelCover, thumbType.Width, thumbType.Height)
+		if size.ExceedsLimit() {
+			log.Debugf("%s: using original, size exceeds limit (width %d, height %d)", labelCover, size.Width, size.Height)
 
 			AddCoverCacheHeader(c)
 			c.File(fileName)
@@ -213,10 +213,10 @@ func LabelCover(router *gin.RouterGroup) {
 
 		var thumbnail string
 
-		if conf.ThumbUncached() || thumbType.OnDemand() {
-			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, f.FileOrientation, thumbType.Options...)
+		if conf.ThumbUncached() || size.Uncached() {
+			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, f.FileOrientation, size.Options...)
 		} else {
-			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, thumbType.Options...)
+			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, size.Options...)
 		}
 
 		if err != nil {
diff --git a/internal/api/folder_cover.go b/internal/api/folder_cover.go
index af7210eb2..0f70960b1 100644
--- a/internal/api/folder_cover.go
+++ b/internal/api/folder_cover.go
@@ -23,7 +23,7 @@ const (
 // Parameters:
 //   uid: string folder uid
 //   token: string url security token, see config
-//   type: string thumb type, see thumb.Types
+//   type: string thumb type, see thumb.Sizes
 func GetFolderCover(router *gin.RouterGroup) {
 	router.GET("/folders/t/:uid/:token/:type", func(c *gin.Context) {
 		if InvalidPreviewToken(c) {
@@ -37,7 +37,7 @@ func GetFolderCover(router *gin.RouterGroup) {
 		typeName := c.Param("type")
 		download := c.Query("download") != ""
 
-		thumbType, ok := thumb.Types[typeName]
+		size, ok := thumb.Sizes[typeName]
 
 		if !ok {
 			log.Errorf("folder: invalid thumb type %s", txt.Quote(typeName))
@@ -45,11 +45,11 @@ func GetFolderCover(router *gin.RouterGroup) {
 			return
 		}
 
-		if thumbType.ExceedsSize() && !conf.ThumbUncached() {
-			typeName, thumbType = thumb.Find(conf.ThumbSize())
+		if size.Uncached() && !conf.ThumbUncached() {
+			typeName, size = thumb.Find(conf.ThumbSizePrecached())
 
 			if typeName == "" {
-				log.Errorf("folder: invalid thumb size %d", conf.ThumbSize())
+				log.Errorf("folder: invalid thumb size %d", conf.ThumbSizePrecached())
 				c.Data(http.StatusOK, "image/svg+xml", folderIconSvg)
 				return
 			}
@@ -101,8 +101,8 @@ func GetFolderCover(router *gin.RouterGroup) {
 		}
 
 		// Use original file if thumb size exceeds limit, see https://github.com/photoprism/photoprism/issues/157
-		if thumbType.ExceedsSizeUncached() && !download {
-			log.Debugf("%s: using original, size exceeds limit (width %d, height %d)", folderCover, thumbType.Width, thumbType.Height)
+		if size.ExceedsLimit() && !download {
+			log.Debugf("%s: using original, size exceeds limit (width %d, height %d)", folderCover, size.Width, size.Height)
 			AddCoverCacheHeader(c)
 			c.File(fileName)
 			return
@@ -110,10 +110,10 @@ func GetFolderCover(router *gin.RouterGroup) {
 
 		var thumbnail string
 
-		if conf.ThumbUncached() || thumbType.OnDemand() {
-			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, f.FileOrientation, thumbType.Options...)
+		if conf.ThumbUncached() || size.Uncached() {
+			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, f.FileOrientation, size.Options...)
 		} else {
-			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, thumbType.Options...)
+			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, size.Options...)
 		}
 
 		if err != nil {
diff --git a/internal/api/photo_thumb.go b/internal/api/photo_thumb.go
index 7f9a0a1d1..73ea37c0b 100644
--- a/internal/api/photo_thumb.go
+++ b/internal/api/photo_thumb.go
@@ -23,7 +23,7 @@ import (
 // Parameters:
 //   hash: string sha1 file hash
 //   token: string url security token, see config
-//   type: string thumb type, see thumb.Types
+//   type: string thumb type, see thumb.Sizes
 func GetThumb(router *gin.RouterGroup) {
 	router.GET("/t/:hash/:token/:type", func(c *gin.Context) {
 		if InvalidPreviewToken(c) {
@@ -37,7 +37,7 @@ func GetThumb(router *gin.RouterGroup) {
 		typeName := c.Param("type")
 		download := c.Query("download") != ""
 
-		thumbType, ok := thumb.Types[typeName]
+		size, ok := thumb.Sizes[typeName]
 
 		if !ok {
 			log.Errorf("thumbs: invalid type %s", txt.Quote(typeName))
@@ -45,11 +45,11 @@ func GetThumb(router *gin.RouterGroup) {
 			return
 		}
 
-		if thumbType.ExceedsSize() && !conf.ThumbUncached() {
-			typeName, thumbType = thumb.Find(conf.ThumbSize())
+		if size.Uncached() && !conf.ThumbUncached() {
+			typeName, size = thumb.Find(conf.ThumbSizePrecached())
 
 			if typeName == "" {
-				log.Errorf("thumbs: invalid size %d", conf.ThumbSize())
+				log.Errorf("thumbs: invalid size %d", conf.ThumbSizePrecached())
 				c.Data(http.StatusOK, "image/svg+xml", photoIconSvg)
 				return
 			}
@@ -82,7 +82,7 @@ func GetThumb(router *gin.RouterGroup) {
 
 		// Return existing thumbs straight away.
 		if !download {
-			if fileName, err := thumb.FileName(fileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, thumbType.Options...); err == nil && fs.FileExists(fileName) {
+			if fileName, err := thumb.FileName(fileHash, conf.ThumbPath(), size.Width, size.Height, size.Options...); err == nil && fs.FileExists(fileName) {
 				c.File(fileName)
 				return
 			}
@@ -131,8 +131,8 @@ func GetThumb(router *gin.RouterGroup) {
 		}
 
 		// Use original file if thumb size exceeds limit, see https://github.com/photoprism/photoprism/issues/157
-		if thumbType.ExceedsSizeUncached() && c.Query("download") == "" {
-			log.Debugf("thumbs: using original, size exceeds limit (width %d, height %d)", thumbType.Width, thumbType.Height)
+		if size.ExceedsLimit() && c.Query("download") == "" {
+			log.Debugf("thumbs: using original, size exceeds limit (width %d, height %d)", size.Width, size.Height)
 
 			AddThumbCacheHeader(c)
 			c.File(fileName)
@@ -142,10 +142,10 @@ func GetThumb(router *gin.RouterGroup) {
 
 		var thumbnail string
 
-		if conf.ThumbUncached() || thumbType.OnDemand() {
-			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, f.FileOrientation, thumbType.Options...)
+		if conf.ThumbUncached() || size.Uncached() {
+			thumbnail, err = thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, f.FileOrientation, size.Options...)
 		} else {
-			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, thumbType.Options...)
+			thumbnail, err = thumb.FromCache(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, size.Options...)
 		}
 
 		if err != nil {
@@ -178,7 +178,7 @@ func GetThumb(router *gin.RouterGroup) {
 // Parameters:
 //   hash: string sha1 file hash
 //   token: string url security token, see config
-//   type: string thumb type, see thumb.Types
+//   type: string thumb type, see thumb.Sizes
 //   area: string image area identifier, e.g. 022004010015
 func GetThumbCrop(router *gin.RouterGroup) {
 	router.GET("/t/:hash/:token/:type/:area", func(c *gin.Context) {
@@ -193,19 +193,19 @@ func GetThumbCrop(router *gin.RouterGroup) {
 		cropArea := c.Param("area")
 		download := c.Query("download") != ""
 
-		thumbType, ok := thumb.Types[typeName]
+		size, ok := thumb.Sizes[typeName]
 
-		if !ok || len(thumbType.Options) < 1 {
+		if !ok || len(size.Options) < 1 {
 			log.Errorf("thumbs: invalid type %s", txt.Quote(typeName))
 			c.Data(http.StatusOK, "image/svg+xml", photoIconSvg)
 			return
-		} else if thumbType.Options[0] != thumb.ResampleCrop {
+		} else if size.Options[0] != thumb.ResampleCrop {
 			log.Errorf("thumbs: invalid crop %s", txt.Quote(typeName))
 			c.Data(http.StatusOK, "image/svg+xml", photoIconSvg)
 			return
 		}
 
-		fileName, err := crop.FromCache(fileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, cropArea)
+		fileName, err := crop.FromCache(fileHash, conf.ThumbPath(), size.Width, size.Height, cropArea)
 
 		if err != nil {
 			log.Errorf("thumbs: %s", err)
diff --git a/internal/api/share_preview.go b/internal/api/share_preview.go
index e34861593..9ce11029f 100644
--- a/internal/api/share_preview.go
+++ b/internal/api/share_preview.go
@@ -88,7 +88,7 @@ func SharePreview(router *gin.RouterGroup) {
 			return
 		} else if count < 12 {
 			f := p[0]
-			thumbType, _ := thumb.Types["fit_720"]
+			size, _ := thumb.Sizes["fit_720"]
 
 			fileName := photoprism.FileName(f.FileRoot, f.FileName)
 
@@ -98,7 +98,7 @@ func SharePreview(router *gin.RouterGroup) {
 				return
 			}
 
-			thumbnail, err := thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, f.FileOrientation, thumbType.Options...)
+			thumbnail, err := thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, f.FileOrientation, size.Options...)
 
 			if err != nil {
 				log.Error(err)
@@ -117,7 +117,7 @@ func SharePreview(router *gin.RouterGroup) {
 		y := 0
 
 		preview := imaging.New(width, height, color.NRGBA{255, 255, 255, 255})
-		thumbType, _ := thumb.Types["tile_224"]
+		size, _ := thumb.Sizes["tile_224"]
 
 		for _, f := range p {
 			fileName := photoprism.FileName(f.FileRoot, f.FileName)
@@ -128,7 +128,7 @@ func SharePreview(router *gin.RouterGroup) {
 				return
 			}
 
-			thumbnail, err := thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), thumbType.Width, thumbType.Height, f.FileOrientation, thumbType.Options...)
+			thumbnail, err := thumb.FromFile(fileName, f.FileHash, conf.ThumbPath(), size.Width, size.Height, f.FileOrientation, size.Options...)
 
 			if err != nil {
 				log.Error(err)
diff --git a/internal/commands/config.go b/internal/commands/config.go
index 17fa58d2e..305f23191 100644
--- a/internal/commands/config.go
+++ b/internal/commands/config.go
@@ -132,7 +132,7 @@ func configAction(ctx *cli.Context) error {
 	fmt.Printf("%-25s %s\n", "preview-token", conf.PreviewToken())
 	fmt.Printf("%-25s %s\n", "thumb-filter", conf.ThumbFilter())
 	fmt.Printf("%-25s %t\n", "thumb-uncached", conf.ThumbUncached())
-	fmt.Printf("%-25s %d\n", "thumb-size", conf.ThumbSize())
+	fmt.Printf("%-25s %d\n", "thumb-size", conf.ThumbSizePrecached())
 	fmt.Printf("%-25s %d\n", "thumb-size-uncached", conf.ThumbSizeUncached())
 	fmt.Printf("%-25s %s\n", "thumb-path", conf.ThumbPath())
 	fmt.Printf("%-25s %d\n", "jpeg-size", conf.JpegSize())
diff --git a/internal/commands/resample.go b/internal/commands/resample.go
index 4ef9220d6..6e2c3b12c 100644
--- a/internal/commands/resample.go
+++ b/internal/commands/resample.go
@@ -9,21 +9,21 @@ import (
 	"github.com/urfave/cli"
 )
 
-// ResampleCommand registers the thumbs cli command.
+// ResampleCommand registers the resample cli command.
 var ResampleCommand = cli.Command{
 	Name:    "resample",
 	Aliases: []string{"thumbs"},
-	Usage:   "Pre-renders thumbnails (significantly reduces memory and cpu usage)",
+	Usage:   "Pre-caches thumbnails to reduce memory and cpu usage",
 	Flags: []cli.Flag{
 		cli.BoolFlag{
 			Name:  "force, f",
-			Usage: "re-create existing thumbnails",
+			Usage: "replace existing thumbnails",
 		},
 	},
 	Action: resampleAction,
 }
 
-// resampleAction pre-render the thumbnails
+// resampleAction pre-caches default thumbnails.
 func resampleAction(ctx *cli.Context) error {
 	start := time.Now()
 
diff --git a/internal/config/client.go b/internal/config/client.go
index fc7894a81..b8b917cea 100644
--- a/internal/config/client.go
+++ b/internal/config/client.go
@@ -43,7 +43,7 @@ type ClientConfig struct {
 	Lenses          entity.Lenses       `json:"lenses"`
 	Countries       entity.Countries    `json:"countries"`
 	People          entity.People       `json:"people"`
-	Thumbs          ThumbTypes          `json:"thumbs"`
+	Thumbs          ThumbSizes          `json:"thumbs"`
 	Status          string              `json:"status"`
 	MapKey          string              `json:"mapKey"`
 	DownloadToken   string              `json:"downloadToken"`
diff --git a/internal/config/config.go b/internal/config/config.go
index 84e99739f..33a511b31 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -72,12 +72,12 @@ func init() {
 	LowMem = TotalMem < MinMem
 
 	// Init public thumb sizes for use in client apps.
-	for i := len(thumb.DefaultTypes) - 1; i >= 0; i-- {
-		size := thumb.DefaultTypes[i]
-		t := thumb.Types[size]
+	for i := len(thumb.DefaultSizes) - 1; i >= 0; i-- {
+		name := thumb.DefaultSizes[i]
+		t := thumb.Sizes[name]
 
 		if t.Public {
-			Thumbs = append(Thumbs, ThumbType{Size: size, Use: t.Use, Width: t.Width, Height: t.Height})
+			Thumbs = append(Thumbs, ThumbSize{Size: name, Use: t.Use, Width: t.Width, Height: t.Height})
 		}
 	}
 }
@@ -131,7 +131,7 @@ func (c *Config) Options() *Options {
 func (c *Config) Propagate() {
 	log.SetLevel(c.LogLevel())
 
-	thumb.Size = c.ThumbSize()
+	thumb.SizePrecached = c.ThumbSizePrecached()
 	thumb.SizeUncached = c.ThumbSizeUncached()
 	thumb.Filter = c.ThumbFilter()
 	thumb.JpegQuality = c.JpegQuality()
diff --git a/internal/config/flags.go b/internal/config/flags.go
index db88fcb7a..26f60fe46 100644
--- a/internal/config/flags.go
+++ b/internal/config/flags.go
@@ -5,7 +5,7 @@ import (
 	"github.com/urfave/cli"
 )
 
-// PhotoPrism command-line parameters and flags.
+// GlobalFlags describes global command-line parameters and flags.
 var GlobalFlags = []cli.Flag{
 	cli.BoolFlag{
 		Name:   "debug",
@@ -387,7 +387,7 @@ var GlobalFlags = []cli.Flag{
 	},
 	cli.IntFlag{
 		Name:   "thumb-size, s",
-		Usage:  "static thumbnail size limit in `PIXELS` (720-7680)",
+		Usage:  "pre-cached thumbnail size in `PIXELS` (720-7680)",
 		Value:  2048,
 		EnvVar: "PHOTOPRISM_THUMB_SIZE",
 	},
diff --git a/internal/config/resample.go b/internal/config/resample.go
index 35827d6b8..d0ccc906c 100644
--- a/internal/config/resample.go
+++ b/internal/config/resample.go
@@ -56,8 +56,8 @@ func (c *Config) ThumbUncached() bool {
 	return c.options.ThumbUncached
 }
 
-// ThumbSize returns the pre-rendered thumbnail size limit in pixels (720-7680).
-func (c *Config) ThumbSize() int {
+// ThumbSizePrecached returns the pre-cached thumbnail size limit in pixels (720-7680).
+func (c *Config) ThumbSizePrecached() int {
 	size := c.options.ThumbSize
 
 	if size < 720 {
@@ -79,8 +79,8 @@ func (c *Config) ThumbSizeUncached() int {
 		limit = 7680 // 8K Ultra HD
 	}
 
-	if c.ThumbSize() > limit {
-		limit = c.ThumbSize()
+	if c.ThumbSizePrecached() > limit {
+		limit = c.ThumbSizePrecached()
 	}
 
 	return limit
diff --git a/internal/config/resample_test.go b/internal/config/resample_test.go
index 24977cc10..43c810d75 100644
--- a/internal/config/resample_test.go
+++ b/internal/config/resample_test.go
@@ -50,9 +50,9 @@ func TestConfig_ThumbSizeUncached(t *testing.T) {
 func TestConfig_ThumbSize(t *testing.T) {
 	c := NewConfig(CliTestContext())
 
-	assert.Equal(t, int(720), c.ThumbSize())
+	assert.Equal(t, int(720), c.ThumbSizePrecached())
 	c.options.ThumbSize = 7681
-	assert.Equal(t, int(7680), c.ThumbSize())
+	assert.Equal(t, int(7680), c.ThumbSizePrecached())
 }
 
 func TestConfig_ThumbSizeUncached2(t *testing.T) {
diff --git a/internal/config/test.go b/internal/config/test.go
index 140818868..83d0e39a6 100644
--- a/internal/config/test.go
+++ b/internal/config/test.go
@@ -138,7 +138,7 @@ func NewTestConfig() *Config {
 
 	c.InitTestDb()
 
-	thumb.Size = c.ThumbSize()
+	thumb.SizePrecached = c.ThumbSizePrecached()
 	thumb.SizeUncached = c.ThumbSizeUncached()
 	thumb.Filter = c.ThumbFilter()
 	thumb.JpegQuality = c.JpegQuality()
diff --git a/internal/config/thumbs.go b/internal/config/thumbs.go
index 403a11f70..c0ddfe0ea 100644
--- a/internal/config/thumbs.go
+++ b/internal/config/thumbs.go
@@ -1,15 +1,15 @@
 package config
 
-// ThumbType represents thumbnail info for use in client apps.
-type ThumbType struct {
+// ThumbSize represents thumbnail info for use in client apps.
+type ThumbSize struct {
 	Size   string `json:"size"`
 	Use    string `json:"use"`
 	Width  int    `json:"w"`
 	Height int    `json:"h"`
 }
 
-// ThumbTypes represents a list of thumbnail types.
-type ThumbTypes []ThumbType
+// ThumbSizes represents a list of thumbnail types.
+type ThumbSizes []ThumbSize
 
 // Thumbs is a list of thumbnails for use in client apps.
-var Thumbs ThumbTypes
+var Thumbs ThumbSizes
diff --git a/internal/photoprism/import_worker.go b/internal/photoprism/import_worker.go
index 86505aa2e..22281ba1a 100644
--- a/internal/photoprism/import_worker.go
+++ b/internal/photoprism/import_worker.go
@@ -210,7 +210,7 @@ func ImportWorker(jobs <-chan ImportJob) {
 
 				if res.Indexed() && f.IsJpeg() {
 					if err := f.ResampleDefault(ind.thumbPath(), false); err != nil {
-						log.Errorf("import: failed creating thumbnails for %s (%s)", txt.Quote(f.BaseName()), err.Error())
+						log.Errorf("import: failed creating thumbs for %s (%s)", txt.Quote(f.BaseName()), err.Error())
 						query.SetFileError(res.FileUID, err.Error())
 					}
 				}
diff --git a/internal/photoprism/index_faces.go b/internal/photoprism/index_faces.go
index d595d83b2..386e8c869 100644
--- a/internal/photoprism/index_faces.go
+++ b/internal/photoprism/index_faces.go
@@ -17,7 +17,7 @@ func (ind *Index) detectFaces(jpeg *MediaFile) face.Faces {
 	var thumbSize string
 
 	// Select best thumbnail depending on configured size.
-	if Config().ThumbSize() < 1280 {
+	if Config().ThumbSizePrecached() < 1280 {
 		minSize = 30
 		thumbSize = "fit_720"
 	} else {
diff --git a/internal/photoprism/index_related.go b/internal/photoprism/index_related.go
index d4c3abab2..ee206fe7a 100644
--- a/internal/photoprism/index_related.go
+++ b/internal/photoprism/index_related.go
@@ -45,7 +45,7 @@ func IndexMain(related *RelatedFiles, ind *Index, opt IndexOptions) (result Inde
 			log.Debugf("index: %s created", txt.Quote(jpegFile.BaseName()))
 
 			if err := jpegFile.ResampleDefault(ind.thumbPath(), false); err != nil {
-				result.Err = fmt.Errorf("index: failed creating thumbnails for %s (%s)", txt.Quote(f.BaseName()), err.Error())
+				result.Err = fmt.Errorf("index: failed creating thumbs for %s (%s)", txt.Quote(f.BaseName()), err.Error())
 				result.Status = IndexFailed
 
 				return result
@@ -59,7 +59,7 @@ func IndexMain(related *RelatedFiles, ind *Index, opt IndexOptions) (result Inde
 
 	if result.Indexed() && f.IsJpeg() {
 		if err := f.ResampleDefault(ind.thumbPath(), false); err != nil {
-			log.Errorf("index: failed creating thumbnails for %s (%s)", txt.Quote(f.BaseName()), err.Error())
+			log.Errorf("index: failed creating thumbs for %s (%s)", txt.Quote(f.BaseName()), err.Error())
 			query.SetFileError(result.FileUID, err.Error())
 		}
 	}
@@ -126,7 +126,7 @@ func IndexRelated(related RelatedFiles, ind *Index, opt IndexOptions) (result In
 				log.Debugf("index: %s created", txt.Quote(jpegFile.BaseName()))
 
 				if err := jpegFile.ResampleDefault(ind.thumbPath(), false); err != nil {
-					result.Err = fmt.Errorf("index: failed creating thumbnails for %s (%s)", txt.Quote(f.BaseName()), err.Error())
+					result.Err = fmt.Errorf("index: failed creating thumbs for %s (%s)", txt.Quote(f.BaseName()), err.Error())
 					result.Status = IndexFailed
 
 					return result
@@ -140,7 +140,7 @@ func IndexRelated(related RelatedFiles, ind *Index, opt IndexOptions) (result In
 
 		if res.Indexed() && f.IsJpeg() {
 			if err := f.ResampleDefault(ind.thumbPath(), false); err != nil {
-				log.Errorf("index: failed creating thumbnails for %s (%s)", txt.Quote(f.BaseName()), err.Error())
+				log.Errorf("index: failed creating thumbs for %s (%s)", txt.Quote(f.BaseName()), err.Error())
 				query.SetFileError(res.FileUID, err.Error())
 			}
 		}
diff --git a/internal/photoprism/mediafile.go b/internal/photoprism/mediafile.go
index e723446c8..2fa64ab50 100644
--- a/internal/photoprism/mediafile.go
+++ b/internal/photoprism/mediafile.go
@@ -888,14 +888,14 @@ func (m *MediaFile) Orientation() int {
 
 // Thumbnail returns a thumbnail filename.
 func (m *MediaFile) Thumbnail(path string, typeName string) (filename string, err error) {
-	thumbType, ok := thumb.Types[typeName]
+	size, ok := thumb.Sizes[typeName]
 
 	if !ok {
 		log.Errorf("media: invalid type %s", typeName)
 		return "", fmt.Errorf("media: invalid type %s", typeName)
 	}
 
-	thumbnail, err := thumb.FromFile(m.FileName(), m.Hash(), path, thumbType.Width, thumbType.Height, m.Orientation(), thumbType.Options...)
+	thumbnail, err := thumb.FromFile(m.FileName(), m.Hash(), path, size.Width, size.Height, m.Orientation(), size.Options...)
 
 	if err != nil {
 		err = fmt.Errorf("media: failed creating thumbnail for %s (%s)", txt.Quote(m.BaseName()), err)
@@ -917,7 +917,7 @@ func (m *MediaFile) Resample(path string, typeName string) (img image.Image, err
 	return imaging.Open(filename)
 }
 
-// ResampleDefault pre-renders default thumbnails.
+// ResampleDefault pre-caches default thumbnails.
 func (m *MediaFile) ResampleDefault(thumbPath string, force bool) (err error) {
 	count := 0
 	start := time.Now()
@@ -925,11 +925,11 @@ func (m *MediaFile) ResampleDefault(thumbPath string, force bool) (err error) {
 	defer func() {
 		switch count {
 		case 0:
-			log.Debug(capture.Time(start, fmt.Sprintf("media: no new thumbnails created for %s", m.BasePrefix(false))))
+			log.Debug(capture.Time(start, fmt.Sprintf("media: no new thumbs created for %s", m.BasePrefix(false))))
 		case 1:
 			log.Info(capture.Time(start, fmt.Sprintf("media: one thumbnail created for %s", m.BasePrefix(false))))
 		default:
-			log.Info(capture.Time(start, fmt.Sprintf("media: %d thumbnails created for %s", count, m.BasePrefix(false))))
+			log.Info(capture.Time(start, fmt.Sprintf("media: %d thumbs created for %s", count, m.BasePrefix(false))))
 		}
 	}()
 
@@ -939,15 +939,15 @@ func (m *MediaFile) ResampleDefault(thumbPath string, force bool) (err error) {
 	var sourceImg image.Image
 	var sourceImgType string
 
-	for _, name := range thumb.DefaultTypes {
-		thumbType := thumb.Types[name]
+	for _, name := range thumb.DefaultSizes {
+		size := thumb.Sizes[name]
 
-		if thumbType.OnDemand() {
-			// Skip, size exceeds limit
+		if size.Uncached() {
+			// Skip, exceeds pre-cached size limit.
 			continue
 		}
 
-		if fileName, err := thumb.FileName(hash, thumbPath, thumbType.Width, thumbType.Height, thumbType.Options...); err != nil {
+		if fileName, err := thumb.FileName(hash, thumbPath, size.Width, size.Height, size.Options...); err != nil {
 			log.Errorf("media: failed creating %s (%s)", txt.Quote(name), err)
 
 			return err
@@ -969,14 +969,14 @@ func (m *MediaFile) ResampleDefault(thumbPath string, force bool) (err error) {
 				originalImg = img
 			}
 
-			if thumbType.Source != "" {
-				if thumbType.Source == sourceImgType && sourceImg != nil {
-					_, err = thumb.Create(sourceImg, fileName, thumbType.Width, thumbType.Height, thumbType.Options...)
+			if size.Source != "" {
+				if size.Source == sourceImgType && sourceImg != nil {
+					_, err = thumb.Create(sourceImg, fileName, size.Width, size.Height, size.Options...)
 				} else {
-					_, err = thumb.Create(originalImg, fileName, thumbType.Width, thumbType.Height, thumbType.Options...)
+					_, err = thumb.Create(originalImg, fileName, size.Width, size.Height, size.Options...)
 				}
 			} else {
-				sourceImg, err = thumb.Create(originalImg, fileName, thumbType.Width, thumbType.Height, thumbType.Options...)
+				sourceImg, err = thumb.Create(originalImg, fileName, size.Width, size.Height, size.Options...)
 				sourceImgType = name
 			}
 
diff --git a/internal/photoprism/mediafile_test.go b/internal/photoprism/mediafile_test.go
index 3673eb058..a753c21dd 100644
--- a/internal/photoprism/mediafile_test.go
+++ b/internal/photoprism/mediafile_test.go
@@ -1873,7 +1873,7 @@ func TestMediaFile_RenderDefaultThumbs(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	thumbFilename, err := thumb.FileName(m.Hash(), thumbsPath, thumb.Types["tile_50"].Width, thumb.Types["tile_50"].Height, thumb.Types["tile_50"].Options...)
+	thumbFilename, err := thumb.FileName(m.Hash(), thumbsPath, thumb.Sizes["tile_50"].Width, thumb.Sizes["tile_50"].Height, thumb.Sizes["tile_50"].Options...)
 
 	if err != nil {
 		t.Fatal(err)
diff --git a/internal/thumb/create_test.go b/internal/thumb/create_test.go
index 57d75e110..b849d6370 100644
--- a/internal/thumb/create_test.go
+++ b/internal/thumb/create_test.go
@@ -35,7 +35,7 @@ func TestResampleOptions(t *testing.T) {
 
 func TestResample(t *testing.T) {
 	t.Run("tile50 options", func(t *testing.T) {
-		tile50 := Types["tile_50"]
+		tile50 := Sizes["tile_50"]
 
 		src := "testdata/example.jpg"
 
@@ -60,7 +60,7 @@ func TestResample(t *testing.T) {
 		assert.Equal(t, 50, boundsNew.Max.Y)
 	})
 	t.Run("left_224 options", func(t *testing.T) {
-		left224 := Types["left_224"]
+		left224 := Sizes["left_224"]
 
 		src := "testdata/example.jpg"
 
@@ -85,7 +85,7 @@ func TestResample(t *testing.T) {
 		assert.Equal(t, 224, boundsNew.Max.Y)
 	})
 	t.Run("right_224 options", func(t *testing.T) {
-		right224 := Types["right_224"]
+		right224 := Sizes["right_224"]
 
 		src := "testdata/example.jpg"
 
@@ -110,7 +110,7 @@ func TestResample(t *testing.T) {
 		assert.Equal(t, 224, boundsNew.Max.Y)
 	})
 	t.Run("fit_1280 options", func(t *testing.T) {
-		fit1280 := Types["fit_1280"]
+		fit1280 := Sizes["fit_1280"]
 
 		src := "testdata/example.jpg"
 
@@ -137,7 +137,7 @@ func TestResample(t *testing.T) {
 }
 
 func TestSuffix(t *testing.T) {
-	tile50 := Types["tile_50"]
+	tile50 := Sizes["tile_50"]
 
 	result := Suffix(tile50.Width, tile50.Height, tile50.Options...)
 
@@ -146,7 +146,7 @@ func TestSuffix(t *testing.T) {
 
 func TestFileName(t *testing.T) {
 	t.Run("colors", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 
 		result, err := FileName("123456789098765432", "testdata", colorThumb.Width, colorThumb.Height, colorThumb.Options...)
 
@@ -158,7 +158,7 @@ func TestFileName(t *testing.T) {
 	})
 
 	t.Run("fit_720", func(t *testing.T) {
-		fit720 := Types["fit_720"]
+		fit720 := Sizes["fit_720"]
 
 		result, err := FileName("123456789098765432", "testdata", fit720.Width, fit720.Height, fit720.Options...)
 
@@ -169,7 +169,7 @@ func TestFileName(t *testing.T) {
 		assert.Equal(t, "testdata/1/2/3/123456789098765432_720x720_fit.jpg", result)
 	})
 	t.Run("invalid width", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 
 		result, err := FileName("123456789098765432", "testdata", -2, colorThumb.Height, colorThumb.Options...)
 
@@ -180,7 +180,7 @@ func TestFileName(t *testing.T) {
 		assert.Empty(t, result)
 	})
 	t.Run("invalid height", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 
 		result, err := FileName("123456789098765432", "testdata", colorThumb.Width, -3, colorThumb.Options...)
 
@@ -191,7 +191,7 @@ func TestFileName(t *testing.T) {
 		assert.Empty(t, result)
 	})
 	t.Run("invalid hash", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 
 		result, err := FileName("12", "testdata", colorThumb.Width, colorThumb.Height, colorThumb.Options...)
 
@@ -202,7 +202,7 @@ func TestFileName(t *testing.T) {
 		assert.Empty(t, result)
 	})
 	t.Run("invalid thumb path", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 
 		result, err := FileName("123456789098765432", "", colorThumb.Width, colorThumb.Height, colorThumb.Options...)
 
@@ -216,7 +216,7 @@ func TestFileName(t *testing.T) {
 
 func TestFromFile(t *testing.T) {
 	t.Run("colors", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 		src := "testdata/example.gif"
 		dst := "testdata/1/2/3/123456789098765432_3x3_resize.png"
 
@@ -234,7 +234,7 @@ func TestFromFile(t *testing.T) {
 	})
 
 	t.Run("orientation >1 ", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 		src := "testdata/example.gif"
 		dst := "testdata/1/2/3/123456789098765432_3x3_resize.png"
 
@@ -252,7 +252,7 @@ func TestFromFile(t *testing.T) {
 	})
 
 	t.Run("missing file", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 		src := "testdata/example.xxx"
 
 		assert.NoFileExists(t, src)
@@ -263,7 +263,7 @@ func TestFromFile(t *testing.T) {
 		assert.Error(t, err)
 	})
 	t.Run("empty filename", func(t *testing.T) {
-		colorThumb := Types["colors"]
+		colorThumb := Sizes["colors"]
 
 		fileName, err := FromFile("", "193456789098765432", "testdata", colorThumb.Width, colorThumb.Height, OrientationNormal, colorThumb.Options...)
 
@@ -277,7 +277,7 @@ func TestFromFile(t *testing.T) {
 
 func TestFromCache(t *testing.T) {
 	t.Run("missing thumb", func(t *testing.T) {
-		tile50 := Types["tile_50"]
+		tile50 := Sizes["tile_50"]
 		src := "testdata/example.jpg"
 
 		assert.FileExists(t, src)
@@ -292,7 +292,7 @@ func TestFromCache(t *testing.T) {
 	})
 
 	t.Run("missing file", func(t *testing.T) {
-		tile50 := Types["tile_50"]
+		tile50 := Sizes["tile_50"]
 		src := "testdata/example.xxx"
 
 		assert.NoFileExists(t, src)
@@ -303,7 +303,7 @@ func TestFromCache(t *testing.T) {
 		assert.Error(t, err)
 	})
 	t.Run("invalid hash", func(t *testing.T) {
-		tile50 := Types["tile_50"]
+		tile50 := Sizes["tile_50"]
 		src := "testdata/example.jpg"
 
 		assert.FileExists(t, src)
@@ -317,7 +317,7 @@ func TestFromCache(t *testing.T) {
 		assert.Empty(t, fileName)
 	})
 	t.Run("empty filename", func(t *testing.T) {
-		tile50 := Types["tile_50"]
+		tile50 := Sizes["tile_50"]
 
 		fileName, err := FromCache("", "193456789098765432", "testdata", tile50.Width, tile50.Height, tile50.Options...)
 
@@ -331,7 +331,7 @@ func TestFromCache(t *testing.T) {
 
 func TestCreate(t *testing.T) {
 	t.Run("tile_500", func(t *testing.T) {
-		tile500 := Types["tile_500"]
+		tile500 := Sizes["tile_500"]
 		src := "testdata/example.jpg"
 		dst := "testdata/example.tile_500.jpg"
 
@@ -368,7 +368,7 @@ func TestCreate(t *testing.T) {
 		assert.Equal(t, 500, boundsNew.Max.Y)
 	})
 	t.Run("width & height <= 150", func(t *testing.T) {
-		tile500 := Types["tile_500"]
+		tile500 := Sizes["tile_500"]
 		src := "testdata/example.jpg"
 		dst := "testdata/example.tile_500.jpg"
 
@@ -405,7 +405,7 @@ func TestCreate(t *testing.T) {
 		assert.Equal(t, 150, boundsNew.Max.Y)
 	})
 	t.Run("invalid width", func(t *testing.T) {
-		tile500 := Types["tile_500"]
+		tile500 := Sizes["tile_500"]
 		src := "testdata/example.jpg"
 		dst := "testdata/example.tile_500.jpg"
 
@@ -433,7 +433,7 @@ func TestCreate(t *testing.T) {
 		t.Log(resized)
 	})
 	t.Run("invalid height", func(t *testing.T) {
-		tile500 := Types["tile_500"]
+		tile500 := Sizes["tile_500"]
 		src := "testdata/example.jpg"
 		dst := "testdata/example.tile_500.jpg"
 
diff --git a/internal/thumb/jpeg_test.go b/internal/thumb/jpeg_test.go
index 823006aae..28513e45c 100644
--- a/internal/thumb/jpeg_test.go
+++ b/internal/thumb/jpeg_test.go
@@ -235,7 +235,6 @@ func TestJpeg(t *testing.T) {
 	}
 
 	t.Run("foo", func(t *testing.T) {
-
 		src := "testdata/example.foo"
 		dst := "testdata/example.foo.jpg"
 
diff --git a/internal/thumb/types.go b/internal/thumb/sizes.go
similarity index 82%
rename from internal/thumb/types.go
rename to internal/thumb/sizes.go
index c6e1ffa5e..820421ab3 100644
--- a/internal/thumb/types.go
+++ b/internal/thumb/sizes.go
@@ -3,16 +3,16 @@ package thumb
 import "github.com/disintegration/imaging"
 
 var (
-	Size             = 2048
+	SizePrecached    = 2048
 	SizeUncached     = 7680
-	Filter           = ResampleLanczos
 	JpegQuality      = 95
 	JpegQualitySmall = 80
+	Filter           = ResampleLanczos
 )
 
 func MaxSize() int {
-	if Size > SizeUncached {
-		return Size
+	if SizePrecached > SizeUncached {
+		return SizePrecached
 	}
 
 	return SizeUncached
@@ -69,7 +69,7 @@ var ResampleMethods = map[ResampleOption]string{
 	ResampleResize:          "resize",
 }
 
-type Type struct {
+type Size struct {
 	Use     string           `json:"use"`
 	Source  string           `json:"-"`
 	Width   int              `json:"w"`
@@ -78,9 +78,9 @@ type Type struct {
 	Options []ResampleOption `json:"-"`
 }
 
-type TypeMap map[string]Type
+type SizeMap map[string]Size
 
-var Types = TypeMap{
+var Sizes = SizeMap{
 	"tile_50":   {"Lists", "tile_500", 50, 50, false, []ResampleOption{ResampleFillCenter, ResampleDefault}},
 	"tile_100":  {"Maps", "tile_500", 100, 100, false, []ResampleOption{ResampleFillCenter, ResampleDefault}},
 	"crop_160":  {"FaceNet", "", 160, 160, false, []ResampleOption{ResampleCrop, ResampleDefault}},
@@ -99,7 +99,7 @@ var Types = TypeMap{
 	"fit_7680":  {"8K Ultra HD 2, Retina 6K", "", 7680, 4320, true, []ResampleOption{ResampleFit, ResampleDefault}},
 }
 
-var DefaultTypes = []string{
+var DefaultSizes = []string{
 	"fit_7680",
 	"fit_4096",
 	"fit_2560",
@@ -117,29 +117,24 @@ var DefaultTypes = []string{
 }
 
 // Find returns the largest default thumbnail type for the given size limit.
-func Find(limit int) (name string, result Type) {
-	for _, name = range DefaultTypes {
-		t := Types[name]
+func Find(limit int) (name string, result Size) {
+	for _, name = range DefaultSizes {
+		t := Sizes[name]
 
 		if t.Width <= limit && t.Height <= limit {
 			return name, t
 		}
 	}
 
-	return "", Type{}
+	return "", Size{}
 }
 
-// ExceedsSize tests if thumbnail type exceeds the cached thumbnails size.
-func (t Type) ExceedsSize() bool {
-	return t.Width > Size || t.Height > Size
+// Uncached tests if thumbnail type exceeds the cached thumbnails size limit.
+func (s Size) Uncached() bool {
+	return s.Width > SizePrecached || s.Height > SizePrecached
 }
 
-// ExceedsSizeUncached tests if thumbnail type is too large and can not be rendered at all.
-func (t Type) ExceedsSizeUncached() bool {
-	return t.Width > MaxSize() || t.Height > MaxSize()
-}
-
-// OnDemand tests if thumbnail type should not be pre-rendered.
-func (t Type) OnDemand() bool {
-	return t.Width > Size || t.Height > Size
+// ExceedsLimit tests if thumbnail type is too large, and can not be rendered at all.
+func (s Size) ExceedsLimit() bool {
+	return s.Width > MaxSize() || s.Height > MaxSize()
 }
diff --git a/internal/thumb/types_test.go b/internal/thumb/sizes_test.go
similarity index 50%
rename from internal/thumb/types_test.go
rename to internal/thumb/sizes_test.go
index 64464b25b..550f02ee4 100644
--- a/internal/thumb/types_test.go
+++ b/internal/thumb/sizes_test.go
@@ -6,54 +6,37 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func TestType_ExceedsLimit(t *testing.T) {
-	Size = 1024
+func TestSize_ExceedsLimit(t *testing.T) {
+	SizePrecached = 1024
 	SizeUncached = 2048
 
-	fit4096 := Types["fit_4096"]
-	assert.True(t, fit4096.ExceedsSizeUncached())
+	fit4096 := Sizes["fit_4096"]
+	assert.True(t, fit4096.ExceedsLimit())
 
-	fit2048 := Types["fit_2048"]
-	assert.False(t, fit2048.ExceedsSizeUncached())
+	fit2048 := Sizes["fit_2048"]
+	assert.False(t, fit2048.ExceedsLimit())
 
-	tile500 := Types["tile_500"]
-	assert.False(t, tile500.ExceedsSizeUncached())
+	tile500 := Sizes["tile_500"]
+	assert.False(t, tile500.ExceedsLimit())
 
-	Size = 2048
+	SizePrecached = 2048
 	SizeUncached = 7680
 }
 
-func TestType_ExceedsSize(t *testing.T) {
-	Size = 1024
+func TestSize_Uncached(t *testing.T) {
+	SizePrecached = 1024
 	SizeUncached = 2048
 
-	fit4096 := Types["fit_4096"]
-	assert.True(t, fit4096.ExceedsSize())
+	fit4096 := Sizes["fit_4096"]
+	assert.True(t, fit4096.Uncached())
 
-	fit2048 := Types["fit_2048"]
-	assert.True(t, fit2048.ExceedsSize())
+	fit2048 := Sizes["fit_2048"]
+	assert.True(t, fit2048.Uncached())
 
-	tile500 := Types["tile_500"]
-	assert.False(t, tile500.ExceedsSize())
+	tile500 := Sizes["tile_500"]
+	assert.False(t, tile500.Uncached())
 
-	Size = 2048
-	SizeUncached = 7680
-}
-
-func TestType_SkipPreRender(t *testing.T) {
-	Size = 1024
-	SizeUncached = 2048
-
-	fit4096 := Types["fit_4096"]
-	assert.True(t, fit4096.OnDemand())
-
-	fit2048 := Types["fit_2048"]
-	assert.True(t, fit2048.OnDemand())
-
-	tile500 := Types["tile_500"]
-	assert.False(t, tile500.OnDemand())
-
-	Size = 2048
+	SizePrecached = 2048
 	SizeUncached = 7680
 }
 
@@ -72,7 +55,7 @@ func TestResampleFilter_Imaging(t *testing.T) {
 	})
 }
 
-func TestFinde(t *testing.T) {
+func TestFind(t *testing.T) {
 	t.Run("2048", func(t *testing.T) {
 		tName, tType := Find(2048)
 		assert.Equal(t, "fit_2048", tName)
diff --git a/internal/thumb/thumb_test.go b/internal/thumb/thumb_test.go
index 4c46098e1..dfb6792d0 100644
--- a/internal/thumb/thumb_test.go
+++ b/internal/thumb/thumb_test.go
@@ -18,7 +18,7 @@ func TestMain(m *testing.M) {
 	code := m.Run()
 
 	// remove temporary test files
-	os.RemoveAll("testdata/1")
+	_ = os.RemoveAll("testdata/1")
 
 	os.Exit(code)
 }
diff --git a/internal/workers/share.go b/internal/workers/share.go
index b1a9c6489..c78d461af 100644
--- a/internal/workers/share.go
+++ b/internal/workers/share.go
@@ -97,14 +97,14 @@ func (worker *Share) Start() (err error) {
 			srcFileName := photoprism.FileName(file.File.FileRoot, file.File.FileName)
 
 			if a.ShareSize != "" {
-				thumbType, ok := thumb.Types[a.ShareSize]
+				size, ok := thumb.Sizes[a.ShareSize]
 
 				if !ok {
 					log.Errorf("share: invalid size %s", a.ShareSize)
 					continue
 				}
 
-				srcFileName, err = thumb.FromFile(srcFileName, file.File.FileHash, worker.conf.ThumbPath(), thumbType.Width, thumbType.Height, file.File.FileOrientation, thumbType.Options...)
+				srcFileName, err = thumb.FromFile(srcFileName, file.File.FileHash, worker.conf.ThumbPath(), size.Width, size.Height, file.File.FileOrientation, size.Options...)
 
 				if err != nil {
 					worker.logError(err)