Zigbee Hue With Presets?


I am trying to get started with creating a Device Type. I have an EcoSmart RGBW bulb, and found that that best Device Handler for it is the Zigbee Hue bulb handler.

I like the GUI for the light, but was wondering if it’d be possible to add some pre-set buttons at the bottom for colours I use often (White, Red, Pink). I know the exact HEX colours I need, just not sure the best way to implement these. I’ve forked the original Device Handler, but need some guidance on how to add to the GUI. Can anyone help?