Timer/Combo/Energy mod for rogues.
Brown Bar - Rupture
Blue Bar - Slice and Dice
Energy is colour coded to make pve raid choices quicker.
Red - Energy will cap soon, use an ability
Green - Perfect energy for energy pooling on a finisher (AToL)
Yellow - Enough energy for a sinister strike
If you are blood elf it also handles mana tap;
Dark Blue - 3 charges of Mana Tap and not enough energy for a sinister strike.
Light Blue - Mana Tap of cooldown and target has mana.