Update 1.1 - Rendering Fixes

This update contains a quick fix regarding rendering issues (anti-aliasing and masking)—problems which didn't occur with my Isle of Lore 2: Hex Tiles pack, but could occur if Tile Builder would have been used on its own for other projects or experiments. I stumbled upon this issue while working on Color Mapper and the new Terrain Icons update and as Tile Builder uses the same rendering code, I fixed it there too.

Wish you the best,
Steven