Hello,
yes, we discussed it already on the old forum and then again here. I just can’t find that thread there nor here any more.
It is possible to change watchface like this using tags [wi] or [ci]. It has big disadvantage, they get reset at midnight.
They can be used to control opacity or placement of elements.
Lets have 2 background images (or more). They can be inserted separately. Then opacity for one would be like ([wi]==0)*100, for the other like ([wi]>0)*100. Then there could be like two (or more) sets of watchhands, with same expressions for opacity or there could be used [ci] instad.
Advantage would be, they can be automaticaly generated same way for the AoD design.