fix: 修复中药开放部分问题

packages/effects/hooks/src/use-watermark.ts

@@ -47,6 +47,8 @@ export function useWatermark() {
       ...cachedOptions.value,
       ...options,
     };
+    // 这里填写水印颜色
+    cachedOptions.value.globalAlpha = 0.15;
     watermark.value = new Watermark(cachedOptions.value);
     updatePreferences({ app: { watermark: true } });
     await watermark.value?.create();