Kontron KTAM3874-pITX - Manual (Page 173)

KTD-S0057-I Page 169 Linux® Programming Examples (DebianTM)
KTAM3874/pITX Software Guide
This theme provides only one additional GTK3 entry named
Clearlooks-Phenix and is largely compatible
with 'Adwaita' but you can see the frame-widget in user-/root-mode. Another option insists in the use of:
sudo apt-get install gtk2-engines-murrine
This theme contains three additional GTK3 entries: Albatross (see the demonstration program figure), Blue-
bird and Greybird . If you select the 'Albatross' entry the frame-widget appears in root-mode but disappears
in user-mode (depending on the use of gtk_table_attach or gtk_table_attach_defaults ).
Other problems might not be discovered yet.