How do you change the background color of the place when your playing normally?

You need to have shaders turned on.
theres a folder in data that is called shaders there you can pick the color of the background.
By using the command
/lws shader.inc
lws stands for loadworldshaders and shader.inc would be the name of the shader you pick.

This has been asked & solved recently.
http://forum.toribash.com/showthread.php?t=125382

Use the search button next time.

Closed, "+".