Hi so im trying to chnage all the colours of all of the text and in the tabs i think its the "Color": "#128128128255",   is this correct? if so what format is the number of i cant find it as its not rgba or hex? thx

<color=red>Hello</color>

I would recommend hex codes over color names, such as #ffffff.

https://www.colorhexa.com/
https://www.color-hex.com/