Colors control with a specific tag

It would be useful to have the control of the color into a usable TAG and not only with creator tools (TINT)

It will be great to be able to calculate the colour code for an element with an expression.

That would be very useful, it would even be good to be able to use 2 or more color selectors in order to provide users with more customization options.

Yes, setting colors of elements using calculations will be very very useful.
For example, the same text elements should hava a color on Day, and another on Night. Now it is possible to do it creating 2 elements, each with relative own color and code to hide/show it. A waste of memory, cpu (battery), and time making it.