AutomaThemely VS mugshot

I know about Koi, Yin-Yang, AutomaThemely, Plasma Theme Switcher and the widget I was talking about in last comment, Dynamic global themes. Once I even made a very poorly written and simple script to toggle KDE global themes, gtk themes, konsole colorscheme etc all at once and it barely works but I want to see an officially supported toggle to allow Auto Day/Night theme change in System Settings.

AutomaThemely used to be able to do this... It might still work, but it hasn't been updated in a few years and required Python and pip3. https://github.com/C2N14/AutomaThemely

Configuring your OS to use a dark theme for apps will trigger Dark Aplenglow. You can use apps like https://github.com/Armin2208/Windows-Auto-Night-Mode or https://github.com/C2N14/AutomaThemely to schedule a change from light to dark theme every day instead of manually changing it. Otherwise, if you prefer having a dark theme for all your apps anyway, you can change it in the settings and never have to use a light theme ever again.

I use AutomaThemely

As the mugshot package is not in the Fedora repositories, how can a user picture be loaded so it displays in the whisker menu and logon screen in XFCE 4.16?

Try setting your distfile URL to https://github.com/bluesabre/mugshot/archive/refs/tags/${pkgname}-${version}.tar.gz, then regenerate the checksum using xgensum. You'll also want to set homepage to the project's GitHub URL since it doesn't seem to be updated on launchpad anymore, and add the following line to your template if you haven't already: wrksrc="${pkgname}-${pkgname}-${version}". Finally, you may want to consider changing the maintainer field to have your information since the current one obviously hasn't cared enough to update the package in two years.