I already found out a few things to change.
Only the 2 orignal buttons are nice and sharp. These are the buttons : sort and resetfilter.
The 3 i added are working but not sharp.
Can somebody help me with that?
HBToolbar = Sort(button=1,relief=none,minwidth=28) \
ResetFilter(button=1,relief=none,minwidth=28) \
Fullscreen(button=1,relief=none,minwidth=28) \
Button1(click1="RunPerlCode(::IdleScan)",stock=gtk-zoom-in,tip=_"scan now"), \
Button2(click1="RunPerlCode(::IdleCheck)",stock=gtk-refresh,tip=_"check now")
So button Fullscreen, scan now and check now are not nice.
Thanks