users/foo-dogsquared/programs/custom-homepage: add themes option

configs/home-manager/foo-dogsquared/modules/programs/custom-homepage.nix

@@ -5,6 +5,7 @@ let
   cfg = userCfg.programs.custom-homepage;
 
   settingsFormat = pkgs.formats.toml { };
+  themesSettingsFormat = pkgs.formats.yaml { };
 in
 {
   options.users.foo-dogsquared.programs.custom-homepage = {
@@ -33,6 +34,51 @@ in
       '';
     };
 
+    themes = lib.mkOption {
+      type = with lib.types; attrsOf path;
+      description = ''
+        Set of [Tinted Theming Base16
+        palettes](https://github.com/tinted-theming) to be exported to the
+        homepage.
+
+        ::: {.note}
+        As such, they are assumed to be all YAML files.
+        :::
+      '';
+      default = { };
+      example = lib.literalExpression ''
+        {
+          _dark = ./files/base16/bark-on-a-tree.yml;
+          _light = ./files/base16/albino-bark-on-a-tree.yml;
+
+          catpuccin-mocha = (pkgs.formats.yaml { }).generate "catpuccin-mocha-base16" {
+            system = "base16";
+            name = "Catppuccin Mocha";
+            author = "https://github.com/catppuccin/catppuccin";
+            variant = "dark";
+            palette = {
+              base00 = "1e1e2e";
+              base01 = "181825";
+              base02 = "313244";
+              base03 = "45475a";
+              base04 = "585b70";
+              base05 = "cdd6f4";
+              base06 = "f5e0dc";
+              base07 = "b4befe";
+              base08 = "f38ba8";
+              base09 = "fab387";
+              base0A = "f9e2af";
+              base0B = "a6e3a1";
+              base0C = "94e2d5";
+              base0D = "89b4fa";
+              base0E = "cba6f7";
+              base0F = "f2cdcd";
+            };
+          };
+        }
+      '';
+    };
+
     package = lib.mkOption {
       type = lib.types.package;
       description = ''
@@ -60,10 +106,16 @@ in
           ${acc}
           install -Dm0644 ${v} './data/foodogsquared-homepage/links/${n}.toml'
         '') "" data;
+
+        installThemes = lib.foldlAttrs (acc: n: v: ''
+          ${acc}
+          install -Dm0644 ${v} './data/foodogsquared-homepage/themes/${n}}.yaml
+        '') "" cfg.themes;
       in
       cfg.package.overrideAttrs (prevAttrs: {
         preBuild = (prevAttrs.preBuild or "") + ''
           ${installDataDir}
+          ${installThemes}
         '';
       });
   };