This tileset is grid based, simple and try to keep the ASCII feeling in it, in some way and try to make it easier on the eyes. It started with as a base the tileset from Marble Dice and the Lee's Colour scheme.
I recommend using it with TWBT but it doesn't contain any overides, so it will works with vanilla DF too.

Some raws has been changes:
All stones now use the tiles 178.
All ores use the tile *.
All soils use the tile 176.
All flowers ,pollens are changed to use the same tiles as the leafs and twigs.