feat(ui):修改文本颜色

@@ -24,7 +24,7 @@ class CustomWatchThemePreviewView
         child: Text(
         child: Text(
           context.l10n.watchThemeDelete,
           context.l10n.watchThemeDelete,
           style: const TextStyle(
           style: const TextStyle(
-            color: Color(0xFFFC4447),
+            color: Color(0xFF78787D),
             fontSize: 14,
             fontSize: 14,
             fontWeight: FontWeight.w600,
             fontWeight: FontWeight.w600,
           ),
           ),