Let’s add a splash of color. Go to the Texture Sizing menu and pick Remap Textures. Here you can choose from any ground texture, broken up into the basic categories: Rock, Cliff, Dirt, Grass, and Misc. We’ve gone with Grass here. Click OK and the grey will be replaced by lush vegetation. To make it a bit more active, you can go into the View menu and switch on cloud effects, bump mapped terrain, and other visuals - although they’ll slow down the editor.