overhaul colored nodes handling

[BuckarooBanzay]

Api and texture overhaul, whiteoct and whitetile have now a colorless overlay, white remains the same, the new overlay didn't look good with that node

[D00Med]

Those colours are quite strong, are they provided by a coloured nodes mod?

[BuckarooBanzay]

Those colours are quite strong, are they provided by a coloured nodes mod?

Yeah, those come from the unifieddyes mod (https://github.com/mt-mods/unifieddyes)
there are 256 color variants (with the same node, it's just the param2 that is changing.

This was already doable (#38), just without the overlay, the texture was colored as a whole, which made it look quite unnatural IMO.

A more complete example:

Based on this here: https://blockexchange.minetest.ch/schema/Lemente/coloredwood_palette

[OgelGames]

I think I prefer the whole texture being colored, the overlay doesn't seem to fit with some of the colors, especially the green 🤔

Also the whiteoct overlay is missing its shading.

[D00Med]

I think even if the overlay doesn't fit all of the tiles, it's still better than before, right?