Battle Icons & BattleList Tab: use user config's background & foreground colour.

ToolTabs.cs: overflow button is DimGrey (so that it is visible if user use either pure black or pure white background).

Conflicts:
	ZeroKLobby/MicroLobby/BattleListControl.cs
Merge pull request #214 from xponen/zkl_multiplayerTab_color

ZKL: full version of skasi's Multiplayer user colour fix...