sudo, applications do not follow the GTK2 theme and font. How can I set identical settings for use when an application is run from root, but while inside a desktop from a user?
You can create a
.gtkrc-2.0 file inside
/root, such as
gtk-theme-name="Redmond" gtk-icon-theme-name="hicolor" gtk-font-name="Sans 10"
Or, can install an utility like
lxappearance and run it with sudo, then you can set the theme graphically.