Test for NEW DB creation:
Seems to work now but found a little thing I guess...
Started from scratch.
Launched beta3, enabled db in settings, saved, started to watch .avi via smb.
They changed their colors in directory after half-watching and were able to resume.
So I was thinking the bug was fixed.
But then...
After 3 or 4 files, they still changed their color after half-watching but couldn't be resumed anymore. They started from the beginning. Then I shut down nxmp (first time after new db creation) and started it again. Now resume of these files is working again and this little bug never came back again yet.
Hope this helps. I could live with that if I just have to reboot the application once after db creation if this bug should occurs again.
About your missing icons. I'm definitely NOT an icon artist but I'm sad to see, nobody wants to help with it. I'll try my best to make some in my free time today but I can't promise that I'll finish
Edit.
All of my files which contain subtitles seem to start now with activated subtitles right away. I have to manually deactivate them because they bug me.
I think this behavior wasn't actually in beta 1 or beta 2