When we can change the colors of our flames?
The bumpmap release(May,as Gman said) mean textured joints?(like the pics of Gman's post?)

I think the flames vary per person, but maybe if Hampa utilizes this feature in the next version of Toribash, you may have an option.

Flame - no idea, whenever the forge is opened.

Bumpmaps - they combine with your existing textures to add another layer of depth.

So far the only joint texture in existence is the Hector Relax, you'll find it in veb's market for a sill amount of TC.

Isnt Hector Relax just an item? It can be seen in-game? Isnt it just a rare item like Blood vodka or something like this?

Hector Relax is a fully functioning joint colour. I asked veb about it ages ago.