A way to get calculate color for feature?

[adjourn]

Hello good people! I got tired of switching between browser and editor to style the map, so I build a simple sidebar that contains colorpickers to edit and preview colors live.

The issue I encountered: not able to get and preview the initial color if color is not a simple HEX.
I mean, it makes sense if I think about it, getPaintProperty does return the liternal value, for example:

'background-color': { base: 1, stops: [ [1, '#000'], [15, '#fff'] ] }

It is not necessary to show the color by any means (although annoying since colorpickers then default to #000), but it did raise a question. I assume the interpolations, ramps, etc are calculated on GPU and there's no way to get the calculated HEX value in JS?

Please confirm, thanks!

[HarelM]

Not sure I understand the initial problem statement, why not use maputnik for example?

[adjourn]

I need the context around the map (i.e app) to match things properly, maputnik would be a lot of tab/window switching too.

[HarelM]

I'm not sure, but maybe you could use the style spec package to evaluate the expressions, see here:
https://github.com/maplibre/maplibre-style-spec/blob/main/test/integration/expression/expression.test.ts

[adjourn]

Thanks, I'll look into that!