One of the subtle treats Apple provides to macOS users is the ability to set a custom accent color. This is the color that appears when selecting options in Menus, be it from the Menu Bar or when alt-clicking on items in Finder.
It’s clear that users have taken a liking to this minuscule customization-centric olive branch extended by Apple. That said, wouldn’t it make sense to have similar options in iOS? If you agree with that notion, then you might take a liking to a newly released jailbreak tweak called Accent by iOS developer Ivan Cristina.