colour coding/branding of favourite groups

We have a growing number of businesses within our promapp site which means that we add a new group at the top level whenever there is a new acquisition. The favourite heart on the group is helpful but it is not visually as impactful as we would like.
Suggestion to colour the whole of the group when selected as a favourite, not just the heart. Also to enable colour coding of the groups, this would more easily draw the eye to recognise the brand colour. Additionally ability to add an image/logo to a group would again assist staff to easily recognise the group they need.