It would be nice if AROS had a color picker similar to the classic theme in Windows 95 and later where the user could choose a color for individual gadgets and other GUI elements.
Individual Prefs are used to setup most items we would usually associate with a theme. In Windows for example a "theme" is a group of items to give the OS a certain new look including window style, startup & shutdown sounds, wallpaper image, and even a new cursor style.
It would great if AROS had an app that allowed us to set all these things at one time. We could select window theme, background image, cursor color, startup sound and icon set.
It seems that AMIGASYSTEM has made some progress towards that in his themes for AROS One. Each theme has an icon that activates a script which copies things where they need to go. It handles window theme, cursor color, background image and some icons. So it may be possible.
On AROS I generally think of apps that deal with things like this as a "manager". We already have a Theme Manager at least for Icaros Desktop but that only deals with window themes. On AROS "appearance" is closer to what we want. So an Appearance Manager would set all these things. But we already have an Appearance App in Prefs. Maybe it could be expanded to deal will these new theme features.