Hi Simon,

Great questions...  Some thoughts

• Would you expect to assign a theme within an audience manually, or are you likely to have so many audiences that you would need a way to automate it (for example by creating themes with the same names as the audience ID)?  

[TL - How about adding a new page under 'Appearance' where an admin or other user could select from available audiences and associate them to available themes?  Automation may be too early with this enhancement.  Assume the naming approach would require an additional level of administration for users to rename their themes to match their audiences?  If you wanted to use the same theme for more than one audience, would you have to create copies of the theme and rename them?]

• Given that a user can be a member of multiple audiences but can only have one theme how would the system prioritise which theme to display in cases where multiple audiences have different themes?

[TL - using the administrative page approach, once an association is made, the admin user could change the priority of the audience in receiving a theme, similar to how we allow users to organize course categories or hierarchies.]

• Totara also supports category, course and user themes. Currently the themes are applied with the priority of site, user, category then course (lowest to highest). Where would you expect audience themes to appear in that list?

[TL - site, audience, user, category, course]