Added footer and enable option

flake.nix

@@ -34,6 +34,13 @@
                 --screen ${cfg.screen} \
                 --theme ${cfg.theme} \
                 --icon ${cfg.icon};
+
+              if [ -f ${cfg.splashImage} ]; then
+                cp ${cfg.splashImage} $out/grub/themes/${cfg.theme}/background.jpg;
+              fi;
+              if [ ${pkgs.lib.trivial.boolToString cfg.footer} == "false" ]; then
+                sed -i ':again;$!N;$!b again; s/\+ image {[^}]*}//g' $out/grub/themes/${cfg.theme}/theme.txt;
+              fi;
             '';
           };
           resolution = resolutions."${cfg.screen}";
@@ -41,6 +48,14 @@
         rec {
           options = {
             boot.loader.grub2-theme = {
+              enable = mkOption {
+                default = true;
+                example = true;
+                type = types.bool;
+                description = ''
+                  Enable grub2 theming
+                '';
+              };
               theme = mkOption {
                 default = "tela";
                 example = "tela";
@@ -68,14 +83,22 @@
               splashImage = mkOption {
                 default = "";
                 example = "/my/path/background.jpg";
-                type = types.string;
+                type = types.path;
                 description = ''
                   The path of the image to use for background (must be jpg).
                 '';
               };
+              footer = mkOption {
+                default = true;
+                example = true;
+                type = types.bool;
+                description = ''
+                  Whether to include the image footer.
+                '';
+              };
             };
           };
-          config = mkMerge [{
+          config = mkIf cfg.enable (mkMerge [{
             environment.systemPackages = [
               grub2-theme
             ];
@@ -84,8 +107,13 @@
               splashImage = "${grub2-theme}/grub/themes/${cfg.theme}/background.jpg";
               gfxmodeEfi = "${resolution},auto";
               gfxmodeBios = "${resolution},auto";
+              extraConfig = ''
+                insmod gfxterm
+                insmod png
+                set icondir=($root)/theme/icons
+              '';
             };
-          }];
+          }]);
         };
     };
 }