They used to be unofficial features but have since been disabled, so I would like to petition for them to return as quality-of-life improvements.

When viewing a hatchling's page, I would like an option to see what that pet will look like as an adult with the mutations visible. Right now, the only way to do that is by copying the img URL into the generator, but it's a lot more convenient for it to be embedded in the pet's profile and even have a toggle for it to automatically change all hatchling images to adults.

The second is having a shortcut for creating clickable images in forum posts. Filling in the IMG= is less of a pain for veteran players, but it took me years to be able to do it properly on the first try without getting frustrated. Having a generator on the profile page that would provide the text that you would only have to copy and paste into the forum would be a nice quality-of-life feature. :)