I purchased Cubase 13 a few days ago and tried changing the colors of the meters, from the “Cubase → Preferences ->Appearance” Menu, however the changes do not take place on any of the audio meters in the program, regardless of wether im looking at the arrangement view or mixer view.
If I change the default preset for the master meter, than I can choose the updated colors setting and use these custom colors there, however on the channel meters I am stuck with the original colors which come with cubase and there seems to be no way to change that.
On version 12 these changes would implement imediately upon pressing apply however on 13 they do not.
Make sure that you adjust the color of the scale that you have set for the Master Meter.
The +3dB Digital scale is mandatory for the Channel Meters, so these colors have to be adjusted for that. No alternative scale can be selected for Channel Meters (in contrast to Master Meter, which has a bunch of different scales to chose from).
I went through this a couple of weeks ago and I couldn’t get it to work either. Eventually I got it working. I think the trick is you have to set the scale to +3dB digital in the preferences dialog. Once you do that, the color changes will have effect. AFAIK, that is the only relevant scale for the mix console.
In other words, the mix console scale can’t be changed. It is always +3dB Digital, so if you want to change the colors for the mix console meters, you must first select that scale in the preferences dialog. The scale menu hints at this with the words “channel meter”, but it’s rather confusing.