1.主题背景:
https://www.wxscreen.cn/forum.php?mod=forumdisplay&fid=61&filter=typeid&typeid=37


2.背景音乐:
https://www.wxscreen.cn/forum.php?mod=forumdisplay&fid=61&filter=typeid&typeid=38


3.主题背景、视频背景、霸屏背景素材包
https://www.wxscreen.cn/thread-1393-1-1.html