some GUI feedback mixed with likely bugs, please read:
1. I think there should be a tab colour strip on the active tab being used like the way Notepad++ has, look here to see what I added; http://i46.tinypic.com/speq86.png - after the first release of mp, you could later make the tab strip colour configurable
2. When I have two tabs open and I drag-slide the tab to the right there is some unsightly behaviour that can be fixed; http://i50.tinypic.com/29m946v.png - Instead I think the tab should just be locked from dragging at the very end right of the tab bar at whichever window size just as it is on the left side
3. You could eventually make the tabs drag n drop capable which could when dropped make a copy of a file in which particular folder directory, just an idea.
4. I think 'Settings' could be better renamed to "Preferences" in the final; http://i49.tinypic.com/5w0493.png but this is not a big issue
5. I think the first tab should have some spacing from the far left corner and also from the upper so that tabs are better distinguished; http://i48.tinypic.com/2ekpr2s.png , this is an example of tabs on Yahoo news; http://i46.tinypic.com/6svptj.png can you see the better spacing?
6. Please attempt to add a bottom thin borderline as in this picture; http://i53.tinypic.com/26449cp.png
7. I like the fullscreen controller. I can say that it maybe still lacking more controls like my two most desired of 'slideshow speed' and 'slideshow effects'. What you can also easily add is some hover tooltip info which would display the names of each control; http://i47.tinypic.com/1zf0v2a.png
8. There SHOULD be options in the settings to set a 'maximum tab width' so tabs don't become too wide; http://i48.tinypic.com/fllcnn.png and by default the max tab width should the same length as of the current first tab now
9. In my opinion the default background colour of the viewer should be at a neutral colour and not black, like in the default Vista image viewer; http://i48.tinypic.com/nxs2ds.png It is fine by me if clear intentions want to keep it black, but it's just my feedback on taste
