ColorBadges allows you to have colourful badge on your app which matches the major colour of the app.
It also have border which (for me) making it looks even cooler. No preferences in Settings to setup, just install and good to go.
I've played around with it for few hours now and so far there is no issues with other tweaks accept for Boover.
This tweak is still under development and currently in Beta. No info yet about the pricing. Stay tune for more info of this tweak.