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Some more features, which can be implemented without TOO MUCH effort ->
Custom Colors for -> (1) Main windows background color (2) Differnet color For PERMANENTLY saved links (3) For ORDINARILY saved links (4) For currently OPENED link

ONE NOTE -> At present although we've the Blue color for currently opened links, but would it not be better to have A SEPARATE color for CURRENTLY ACTIVE TAB ALSO, AND THAT TOO FOR DIFFERENT WINDOWS, ie, if in window1 -> Tab no 3 is active and in window 2 , tab no 5 is active then the GREEN (or some other color) will be applied TO BOTH -> Tab no 3 and Tab no 5 (as is implemented in 'Tab Outliner' also)