fix banner and chart color

src/store/settingsStore.ts

@@ -29,7 +29,11 @@ export const useSettingsStore = defineStore('settings', () => {
     if (value == null) {
       return false
     }
-    return value === true || String(value).toLowerCase() === 'true'
+    if (value === true) {
+      return true
+    }
+    const normalized = String(value).trim().toLowerCase()
+    return normalized === 'true' || normalized === '1' || normalized === 'yes'
   }
 
   function mergeSettings(items?: AppSetting[] | null) {