Allow choice of Theme on startup ('Activate first map theme....'...but it's not possible(?) to reorder themes in QGIS)

[timbo-barnes]

Feature Request: Allow choice of a project map theme to activate at startup

As its not practical to re-order themes in QGIS, it's not feasible to 'choose' the first theme for use with the 'Activate first map theme on startup' option. Can the option be changed to choose a map theme instead? (perhaps defaulting to the first theme in that theme isn't found/has been deleted or renamed)

[meyerlor]

A little workaround i use: rename the themes, as they are taken into account by alphabetical order.

1. Start
2. Your other theme
3. Next theme
4. etc