Any way to use the ColorPicker demo within UI Toolkit?

Hi, this might not be a question you can answer, but your color picker demo is amazing and exactly what I need. Unfortunately, my whole game is using UI Toolkit and so far I'm using render textures to show the shapes I draw in the 3D world. Would there be an easy way to interact with your Color Picker within the Toolkit UI?

The only way I've been thinking of doing it is somehow controlling the camera raycasts through a render texture, but that seems very complicated.