Ok, first, the new grouping functionality in 4.5 is good. However, some behaviour leaves me feeling the functionality needs improving.
Namely colouring tracks.
Currently from the Track List or Channel List you cannot click on the colour icon which is to the left of the track name and select a new track colour. This limitation needs updating so that you can.
Grouping and colouring tracks also has this limitation. If i click the colour icon to change the colour of all tracks within the group it simply doesn't give me the option to do so. This is made worse by the fact that i can go into the console and select a new colour for my group, select a new colour and it be reflected in the Console, Arranger view, Track List and Console List but the group section does not update to reflect the new colour.
In the screenshot you'll see the Group section with the Vox group as a violet colour, i've then changed the grouped tracks colour to yellow but the group has not updated to reflect the change.