Actually I'm using the software on Linux. (Ubuntu, Gentoo) with Gnome DE
The stable releases of Saleae Software are coherent with the theme used in the DE.
In beta's (1.1.20) and (1.1.23) the theme is hardcoded and it's not coherent with the DE.
Buttons positions, swipe up / down fullscreen /windowed mode.
I think that some screenshots is more helpful.
Please don't use hardcoded style for the graphics but respect theme chosen by the user. Not everybody uses Ubuntu and the default theme provided by them. Someone likes more default gnome style and is about our freedom to use it.