Memory league and Art of Memory software is in majority in white color. Which could be desireable for some. But, it could be less straining for the eyes or tire them out if there were more colors to choose from. Like the internet browser extension that makes it in black and white, white text with black background. Something like that on these two platforms would be amazing.
On top of that! Having the option to create a background for your Art Of Memory Software, Especially around the journeys would give a more exciting feeling for it, like a real journey or a travel through space. ( I will provide a photo on it too.)