# ControlP5 - Button's Transparency?

**URL:** <https://discourse.processing.org/t/controlp5-buttons-transparency/18393>\
**Category:** Libraries\
**Created:** [March 4, 2020, 7:15pm UTC](https://discourse.processing.org/t/controlp5-buttons-transparency/18393 "2020-03-04T19:15:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![iamjustcurious](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/iamjustcurious/32/8016_2.png) [@iamjustcurious](https://discourse.processing.org/u/iamjustcurious)\
**Post date:** [March 4, 2020, 7:15pm UTC](https://discourse.processing.org/t/controlp5-buttons-transparency/18393/1 "2020-03-04T19:15:44Z")

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Hello, How can I change the transparency of a button in ControlP5 library?

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**Author:** ![anon68884268](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@anon68884268](https://discourse.processing.org/u/anon68884268)\
**Post date:** [March 5, 2020, 2:48pm UTC](https://discourse.processing.org/t/controlp5-buttons-transparency/18393/2 "2020-03-05T14:48:50Z")

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When creating the button, you can use `.setColorBackground(color(200, 20, 50, 127))`, because colors do contain transparency, too.