Here is another How-To on GTK/libpeas plugin development. This time it is on
how to use the GTK Inspector
to dive into application details.
How to enable GTK Inspector
Before we can start we have to enable the GTK inspector with
gsettings set org.gtk.Settings.Debug enable-inspector-keybinding true
Now with any GTK application you can open the GTK inspector by pressing
either Ctrl-Shift-I or Ctrl-Shift-D. If this doesn't help try launching with
Discovering widget names with GTK Inspector
When you have successfully launched the inspector you should see a window like this:
Note the second column 'Name' of the "Objects" table containing all those widget
names we covered in part 2/3 of the tutorial.
Trying GTK CSS styles
If you select the 'CSS' tab you get a inline editor to try style changes in
Liferea. If you make modifications successfully you can save them to disk
and make them permanent.
For quick effect try entering