- Scroll up or down to switch texture types - Left click to add pixels and left click + space to erase If you want to add textures, go to the "selected?" sprite and add new texture their (Make sure they have equal size to the default texture) Also make sure to also go into the "grid" sprite and add the same texture with the same name as you had added to to "selected?" sprite.
Thanks to @Technomaster101 for the Mouse Scrolling Detector code. Thanks to the game Minecraft for the textures All other code and other textures are by me.