Hello,everyone.When I click on the red area

I want to hide the window below

Keep the select color widget

I have read this article
[Segment Editor: reduce the number of mouse clicks to set basic colour for segment - #3 by lassoan]
I change in Application settings → Application startup script → add ctk.ctkColorDialog().setDefaultTab(0)` to the end of the displayed startup script file.
But it didn’t work.I hope you can help me. Thank you!
This feature is only available in recent Slicer Preview Releases.