I downloaded TWD Season 1 via Steam and installed it to my mac.
Right from the beginning I have been struggling to enjoy the game.
The kitchen and other parts in Clementines house, even Hershel whole farmhouse have been see-through. Some houses in Clementines neighbourhood have fancy rainbow coloured textures on them and even the wheat around Hershels farm glare in all colours.
Here is the report of the support tool: