Use NES-like colour scheme for classic modes

[C29H25N3O5]

[User670]

That requires changing color schemes on the fly, and affecting blocks already on the field. (I think we can change color schemes on the fly, but only for those that didn't yet enter the next queue yet)

[MrZ626]

The main problem is we have not enough textures for blocks

[MrZ626]

changing colors of "all blocks of a player" is not hard

[C29H25N3O5]

Maybe we should make a separate skin for classic mode?

[MrZ626]

not neccessary I think

[C29H25N3O5]

The main problem is we have not enough textures for blocks

…or maybe we can realise this by changing the saturations of the blocks?