NOTE: There's UI for all functions now. These shortcuts still work, but you don't need them...

Open Image Files: 

[CTRL] + O = File open menu (You can add multiple images)
 Use arrow keys to navigate to an image file
 Up/Down to search files in a directory
 Left to go up a directory
 Right to load a file or subdirectory

Web Cam: 

[CTRL] + C = Add Webcam Feed
[CTRL] + X = Play/Freeze Webcam Feed

Editing Controls:

Left/Right/Up/Down  =  Move  current image

[SHIFT] + Left/Right  =  Rotate  current image
[SHIFT] + Up  =  Scale up current image
[SHIFT] + Down  =  Scale Down current image
[CTRL] + F  =  Flip current image

Left Arrow + Right Arrow = Stretch current image horizontally
Up Arrow + Down Arrow = Stretch current image vertically

[CTRL] + Left / Right = Adjust gain for current image
[CTRL] + Up / Down = Adjust transparency for current image

[CTRL] + [-] / [+]  =  Set chroma key hue for current image
[SHIFT] + [-] / [+]  =  Set chroma key precision for current image

[CTRL] + H  =  Hue shift  current image

[PG UP] / [PG DN] = Move current image fwd / back in stack order.

[CTRL] + N  =  Select next image
[CTRL] + Backspace = Delete current image

[-][+]  =  Adjust Overall Brightness

[CTRL] + [9][0]  =  Adjust Overall White Value

[CTRL] + B  =  change background color

[CTRL] + P  =  Next Palette
[CTRL] + R  =  Change Resolution

Just start typing! =  Add text
[CTRL] + [ENTER]  =  switch typing target (top/middle/bottom)
[SHIFT] + Backspace = Clear current text
[SHIFT] + T  =  change current text color
[CTRL] + T  =  change current text alignment

[CTRL] + S  =  Save Image

[f9] + Up / Down  =  Mess around with dithering thresholds 
[f10] + Up / Down  =  Mess around with dithering thresholds 
[f11] + Up / Down  =  Mess around with dithering thresholds 
[f12] + Up / Down  =  Mess around with dithering thresholds 

[TAB] + Left / Right = Adjust Horizontal Resolution
[TAB] + Up / Down = Adjust Vertical Resolution
[TAB] + [ESC] Reset Resolution

Set Image Output Location: 

*default location is same directory as the executable
[CTRL] + D = Directory search menu
 Use arrow keys to navigate to a directory
 Up / Down to search subdirectories in a directory
 Left to go up a directory
 Right to search in a subdirectory
 Enter to set save location 

Embrace the jank!