按钮设置透明背景颜色,怎么还有颜色的? (The button sets the transparent background color, how come there are colors?)

MIT App Inventor Help
23

谢了，解决了，原来是 服务器的问题

24

Please close the topic then....

25

@wwsy you can use this extension to Make your Component Transparent

26

This is not related to the topic. The OP asked for transparent background, not transparent component.

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