When displaying multiple windows there is only one active one at a time. It can be hard to spot. On top of that windows overlaid on each other can get confusing as the title bars end up blending together. Would be really good to be able to set an active window one colour and an inactive a different colour. To go one better it would be *real* good to perhaps make an inactive window monochrome in its entirety and that would really make the active window stand out

Any ideas on how this sort of theming can be achieved?