User FAQ
This page is meant to be a collection of answers to questions frequently coming up on the users' mailing list.
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Q1 How do I make Gtk+/Qt apps to use the Trinity style/colors/fonts?
Keywords: toolkit, consistency, look and feel
Gtk+2
Install the Gtk+2 TQt engine (gtk-tqt-engine). Then configure it via Trinity Control Center > Appearance > GTK Styles and Fonts.
Gtk+3
Install the Gtk+3 TQt engine (gtk-tqt-engine). Then configure it in the same way as the Gtk+2 style.
Qt4
Start Qt4's qtconfig (might be named qtconfig-qt4 or similarly on your system). In the option Select GUI Style pick GTK+ from the drop-down menu.
You will have to pick the appropriate fonts manually.
Qt5
Install qt5c and the Gtk+ style plugin for Qt5 (probably in a package named something like qt5-styleplugins).
Then, make Qt5 use qt5ct settings by means of the appropriate environment variable:
$ export QT_QPA_PLATFORMTHEME=qt5ct
You can put this line in your .bashrc for the current user or in a script in the /etc/profile.d directory to set it system-wide.
Next, start qt5ct and select Gtk2 as your Qt5 style.
Once again, you will have to pick the appropriate fonts manually.