I'm running Xubuntu 16.04.1 right now (w/ XFCE4). I do a lot of Qt5 application development. Right now the applications that I'm making aren't matching the GTK theme that I have set (which is "Greybird."), it's giving me the "Raleigh," theme. While this doesn't stop my development, this does drive me nuts.
I have another laptop with Xubuntu 16.04.1 (also XFCE4) that runs the same application, but with my GTK themes working properly. Does anyone know how I can fix this?