There is a function node in the shader graph which allows you to convert from sRGB to Linear and back: LinearTosRGB sRGBToLinear Material node in UE5 Tutorial | UE5 Material All Node Series - YouTube
thanks, but I want to show LinearColor in Curve UI layer,maybe I need to modify code
It’s likely… You can in the color-wheel set the color display as well. I think you should be able to toggle between sRGB and Linear.