Request - Playbar - more buttons

[Dreamer]

Playbar is very nice "MP" feature, I suggest to add more buttons:

- zoom in/out
- reset zoom / original size
- fit image to screen
- toggle information
- toggle histogram

Perhaps even more, X to close fullscreen view, but then it should be customizable...

Edit:

One or two (customizable) buttons to toggle mouse wheel between:

- switching images
- zooming
- (perhaps also scroll)

One or more (customizable) buttons to toggle left button function between:

- move picture
- make selection
- quick zoom (not implemented yet, requested here)

[Dreamer]

Updated.