How do I close the Debug Console?

[DaBigC]

I opened up the debug Console in game by accident, or at least I think that's what it is. How do I close it?

[sillyfly]

if you mean the Lua console (grey line of text in the bottom) - either press Enter or ~ (Tilde).
If you mean the debug settings panel (big panel to the left with lots of check boxes) - F4.