As an author, I want to be able to upload multiple background images and for each image, I want to define rules defining when the image should be used.
Rules could e.g. be based on:
time left
score
number of stages completed
date period
stage unlocked/opened/cleared
or combinations of those
As an author, I want to be able to upload multiple background images and for each image, I want to define rules defining when the image should be used.
Rules could e.g. be based on: