Oh No... Pixel Bleed?
I just learned about Pixel bleed. See that greenish line? You cab even see where I cut the tile in the middle and where the door itself is a separate tile. Its not good! Yeah. Turns out... I can't be doing my tiles like this... See how my bricks touch empty space? Causes bleed. I need to seperate my tiles. So they bleed into themselves. It may require more tilesets to be created, but its likely to be the best method. I am going to need to develop an organizational system for this. Likely: Tileset_CityHouse_Roof.png as an example. I wrote all this on the toilet. I wasn't feeling good. But this helped.