Also run it across the whole tree to get everything using the One True Style.
We don't yet run this in an automated fashion as it's a little slow, but
there is a snippet to do so in makeall.sh.
It's now possible to edit widget properties inline in the properties window.
We're currently relying on the basic GVariant conversion functions to do
all the "parsing" but that's not gonna be good enough.
Use this to add an icon for each process in the ProcessManager.
Right now they all use a generic gear icon, but I'd like to have
per-process icons, obviously. :^)
