How to create/change themes

[vaceletm]

In configuration I'm able to change pretty much everything but themes.
I've seen in source code that it's defined in Session model class and was change lately on master... but I cannot find any corresponding 'migrate' script.
Am I supposed to re-seed the DB after having changed this class or is there a better way to do it ?

[dboissier]

Hi,

It is currently hardcoded and we had to manually reset all session track type after changing the track list. It could be great to be able to define them somewhere in the configuration page.