fix: defaultTheme is only considered when no theme pref is stored

Author: designcise

src/component/AntiFlickerScript.jsx

@@ -6,13 +6,10 @@ export default memo(
     const { [themes.auto]: _, ...colors } = palette
     const classList = Object.values(colors).join("','")
     const preferredTheme = `localStorage.getItem('${storageKey}')`
-    const fallbackTheme =
-      defaultTheme && defaultTheme !== themes.auto
-        ? `'${getColorByTheme(defaultTheme)}'`
-        : `(window.matchMedia('(prefers-color-scheme: ${colors.dark})').matches?'${colors.dark}':'${colors.light}')`
+    const fallbackTheme = `(window.matchMedia('(prefers-color-scheme: ${colors.dark})').matches?'${colors.dark}':'${colors.light}')`
     const script =
       '(function(root){' +
-      `const pref=${preferredTheme};` +
+      `const pref=${preferredTheme}??'${getColorByTheme(defaultTheme)}';` +
       `const theme=(pref&&pref!=='${themes.auto}')?pref:${fallbackTheme};` +
       `root.classList.remove('${classList}');root.classList.add(theme);root.style.colorScheme=theme;` +
       `})(document.documentElement)`