How to change the window title font family and size in Gnome 3?

It was ever possible to set it in gnome-teak-tool. However, in the latest Gnome 3, it disappears. Is there any other way to set it?

The configuration is the org.gnome.desktop.wm.preferences titlebar-font under dconf.

You can use dconf-editor to find the appropriate key entry and set it.

Or use gsettings:

$ gsettings set org.gnome.desktop.wm.preferences titlebar-font 'Sans Bold 10'

To query the settings:

$ gsettings get org.gnome.desktop.wm.preferences titlebar-font