We change our background/theme based upon the season of the church year (Green graphic for Pentecost, Red for Reformation, White for Easter, etc.).  In the past, I have updated the theme itself, changing the background, but I thought I try creating a theme for each season instead.  

I am able to right-click on the new theme and set it as default, but when I do the "Update Themes in Schedule," nothing happens.  The schedule loaded remains on the old theme.

However, if I go to the old way of doing it, just using a single theme and updating it's background image for songs, scripture, and presentations, then click "Update Themes in Schedule," it changes the schedule to reflect the modifications.

Shouldn't I be able to change themes and when changing, also update the schedule?