Maybe I didnt explain the whole process. You would have to insert multiple backgrounds. in the opacity of first would be expression like 100*([wi]==0), in the second it would be like 100*([wi]==1) and so on. then create AoD automaticaly. It should copy all the layers with same settings, if not, make them.
Then the change would be done by using the water intake widget of s-health in the watch and adding or removing glasses.
Its too much work for something so limited.