Color coding of log in cli

Just upgraded from 3.0.2 to 3.1.0.M4 (docker) and found that color coding of log:tail and log:display is not there any more. Worked with 3.0.2. However, separate commands are color coded like e.g. red and green … still the output of log:display and log:tail remains black in total.
Am I missing something or is this a ‘bug’?