The bottom bar in my Geany Window, namely the status bar, seems far too big. There is a setting for hiding it, but I can't find any for shrinking it. Can it be done without having to install anything? It's a change that I'd like, but I don't feel want to bloat Geany.
Assuming you are using Geany with GTK3 (see Help->Debug Messages to find out):
there is no general fix but you can adjust the padding of status bar for Geany by creating the file ~/.config/geany/geany.css (or wherever your Geany configuration is stored) and add the following content:
statusbar {
margin: -6px 0;
}
Maybe you need to tweak the value of -6px to fit your needs.
Note: you need to restart Geany to see the change.
General information on customizing Geany with geany.css can be found in the manual: https://www.geany.org/manual/#customizing-geany-s-appearance-using-gtk-css