# Custom Brush Opacity Syncs with Regular Brush's Alpha Compositing Opacity

**URL:** https://community.aseprite.org/t/custom-brush-opacity-syncs-with-regular-brushs-alpha-compositing-opacity/28738
**Category:** Bug Reports
**Created:** [August 31, 2026, 4:20pm UTC](https://community.aseprite.org/t/custom-brush-opacity-syncs-with-regular-brushs-alpha-compositing-opacity/28738 "2026-08-31T16:20:44Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Drawlife\_Zeta](https://community.aseprite.org/user_avatar/community.aseprite.org/drawlife_zeta/32/27901_2.png) [@Drawlife\_Zeta](https://community.aseprite.org/u/Drawlife_Zeta)
#### Post date: [August 31, 2026, 4:20pm UTC](https://community.aseprite.org/t/custom-brush-opacity-syncs-with-regular-brushs-alpha-compositing-opacity/28738/1 "2026-08-31T16:20:44Z")

</div>

**Windows 10 / Steam / Aseprite v1.3.18.3**

For a custom brush created with **Ctrl + B** , the opacity of its **Simple Ink** mode and the opacity of its **Alpha Compositing** mode always remain consistent with each other. Moreover, they are also simultaneously consistent with the opacity of the **Alpha Compositing** mode of the regular brush. It appears as though they are all sharing the same value.