Update theme engine

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/user/gui/theme/options.nix

@@ -10,22 +10,22 @@ let
 
   init = pkgs.writeShellApplication {
     name = "theme-init";
-    runtimeInputs = with pkgs; [ matugen ];
+    runtimeInputs = with pkgs; [
+      matugen
+      imagemagick
+    ];
     text = ''
       mkdir -p "${cfg.configDir}"
 
-      [[ ! -L "${cfg.configDir}"/wallpaper ]] && [[ ! -f "${cfg.configDir}"/color ]] && echo "#000000" > "${cfg.configDir}"/color
+      [[ ! -f "${cfg.configDir}"/wallpaper ]] && magick -size 1x1 xc:"#000000" png:"${cfg.configDir}"/wallpaper
       [[ ! -f "${cfg.configDir}"/mode ]] && echo "dark" > "${cfg.configDir}"/mode
       [[ ! -f "${cfg.configDir}"/flavor ]] && echo "tonal-spot" > "${cfg.configDir}"/flavor
       [[ ! -f "${cfg.configDir}"/contrast ]] && echo "0" > "${cfg.configDir}"/contrast
 
-      flags=(--mode "$(<"${cfg.configDir}/mode")" --type "scheme-$(<"${cfg.configDir}/flavor")" --contrast "$(<"${cfg.configDir}/contrast")")
-
-      if [[ -L "${cfg.configDir}"/wallpaper ]]; then
-        matugen image "${cfg.configDir}"/wallpaper "''${flags[@]}"
-      elif [[ -f "${cfg.configDir}"/color ]]; then
-        matugen color hex "$(<"${cfg.configDir}"/color)" "''${flags[@]}"
-      fi
+      matugen image "${cfg.configDir}"/wallpaper \
+        --mode "$(<"${cfg.configDir}/mode")" \
+        --type "scheme-$(<"${cfg.configDir}/flavor")" \
+        --contrast "$(<"${cfg.configDir}/contrast")"
 
       ${cfg.initExtraConfig}
       wait
@@ -42,7 +42,10 @@ let
 
   theme = pkgs.writeShellApplication {
     name = "theme";
-    runtimeInputs = with pkgs; [ coreutils ];
+    runtimeInputs = with pkgs; [
+      coreutils
+      imagemagick
+    ];
     runtimeEnv = {
       CONFIG = cfg.configDir;
       INIT = lib.meta.getExe init;