Remove the upgrade of opaque theme colors from before 0.1.3

Configs saved before 0.1.3 (without a menu blur) had their preset
background and primary colors made translucent on load. It's no longer
needed, so Theme drops it, along with ConfigManager.isSaved, which only
it used.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/main/java/org/saturnclient/config/ConfigManager.java

@@ -163,14 +163,6 @@ public class ConfigManager {
         }
     }
 
-    /**
-     * Whether the config file has a value for {@code name} in this namespace,
-     * which tells which version last saved it.
-     */
-    public boolean isSaved(String name) {
-        return getSaved(name) != null;
-    }
-
     private JsonNode getSaved(String name) {
         JsonNode source = cachedJson != null ? cachedJson : loadAndCache();
         if (source == null || !source.isObject())

src/main/java/org/saturnclient/config/Theme.java

@@ -81,29 +81,6 @@ public class Theme {
         config.property("Widget Radius", WIDGET_RADIUS, "Corner rounding of buttons and cards");
 
         config.property("Font", FONT, "Font of every Saturn screen");
-
-        if (!parent.isSaved(Config.MENU_BLUR)) {
-            upgradeOpaqueColors();
-        }
-    }
-
-    /**
-     * Before 0.1.3 panels and cards were made translucent in code, and the
-     * background and primary colors were saved fully opaque. Saved colors that
-     * are an old default or preset get the translucency the colors now carry
-     * themselves; colors the player picked are left as they are. Runs only on
-     * configs from older versions, so a preset color later set opaque on
-     * purpose stays opaque.
-     */
-    private static void upgradeOpaqueColors() {
-        for (Preset preset : PRESETS) {
-            if (BACKGROUND.value == (preset.background() | 0xFF000000)) {
-                BACKGROUND.value = preset.background();
-            }
-            if (PRIMARY.value == (preset.primary() | 0xFF000000)) {
-                PRIMARY.value = preset.primary();
-            }
-        }
     }
 
     /**