This style is called Klassic, because on the one hand it is based on
the HighColor Classic and KDE Classic style.
On the other hand I dislike grandients and even KDE Classic
has a gradient in it's progress bar.
I wanted to make the style more consistent, so the frame of a button
does look exactly like the frame of a combo box now.
The style has been cleaned up - a bit of waste and some bells and whistles
have been removed.
So you can see, the name Klassic fits perfectly :)
(Kind of - I'm not a poet nor a musician and not even an artist!)