Fill
Ctrl+Shift+Alt+[1-9]

Changes the background color of the selected shape(s).
- Transparent: Ctrl+Shift+Alt + 1
- White: Ctrl+Shift+Alt + 2
- Light Grey: Ctrl+Shift+Alt + 3
- Mid Grey: Ctrl+Shift+Alt + 4
- Dark Grey: Ctrl+Shift+Alt + 5
- Black: Ctrl+Shift+Alt + 6
- Orange: Ctrl+Shift+Alt + 7
- Red: Ctrl+Shift+Alt + 8
- Green: Ctrl+Shift+Alt + 9
- Blue: Ctrl+Shift+Alt + 0
Line
Ctrl+Alt+[1-9]

Changes the line color or style of the selected shape(s). Works on both lines and 2-d shapes (changes the border).
- Transparent: Ctrl+Alt + 1
- White: Ctrl+Alt + 2
- Light Grey: Ctrl+Alt + 3
- Mid Grey: Ctrl+Alt + 4
- Dark Grey: Ctrl+Alt + 5
- Black: Ctrl+Alt + 6
- Orange: Ctrl+Alt + 7
- Red: Ctrl+Alt + 8
- Green: Ctrl+Alt + 9
- Blue: Ctrl+Alt + 0
- Full: Ctrl+Alt + F
- Dotted: Ctrl+Alt + D
- Dashed: Ctrl+Alt + H
- Arrows - Start: Ctrl+Alt + Q
- Arrows - End: Ctrl+Alt + A
- Arrows - None: Ctrl+Alt + W
The last 3 commands (arrows) only apply to line shapes since the border of 2-d shapes cannot contain arrows.
Text
Alt+[1-9]
Changes the properties (color, alignment, ...) of a of all shape's text when one or several shapes are selected OR of only the selected text when in text-edit mode inside a shape.

Color
Changes the text color of the selected shape(s) / text.
- White: Ctrl+Shift+Alt + 2
- Light Grey: Ctrl+Shift+Alt + 3
- Mid Grey: Ctrl+Shift+Alt + 4
- Dark Grey: Ctrl+Shift+Alt + 5
- Black: Ctrl+Shift+Alt + 6
- Orange: Ctrl+Shift+Alt + 7
- Red: Ctrl+Shift+Alt + 8
- Green: Ctrl+Shift+Alt + 9
- Blue: Ctrl+Shift+Alt + 0

Auto
Changes the resize behavior of the selected shape(s) Auto-Width takes the minimum space height-wise and resizes automatically the width as text is added / removed /resized in a shape. Auto-height does the opposite, and Remove Auto goes back to manual size control for the shape.
- Auto Width: Ctrl+Shift + X
- Auto Height: Ctrl+Shift + Z
- Remove Auto: Ctrl+Shift+Alt + A
Align
Changes the alignment of the text inside the selected shape(s).
- Left: Alt + LEFT arrow
- Right: Alt + RIGHT arrow
- Top: Alt + UP arrow
- Bottom: Alt + DOWN arrow
- Center: Alt + C
- Middle: Alt + M

Margin
Toggles between a 4pt margin and no margin for the selected shape(s).
- Top: Ctrl+Alt + v arrow
- Bottom: Ctrl+Alt + DOWN arrow
- Left: Ctrl+Alt + LEFT arrow
- Right: Ctrl+Alt + RIGHT arrow

Spacing
Increases or decreases line spacing on the selected shape(s).
- More: Shift+Alt + UP arrow
- Less: Shift+Alt + DOWN arrow
Insert Lorem
Ctrl+Shift+Alt+L
Displays a dialog box which allows you to insert dynamically-generated "lorem ipsum" text inside the selected shape(s) Choose the desired number or words, paragraphs and wwether or not you want the text to start with "Lorem ipsum dolor sit amet", click Insert Lorem and you're done - filler text is inserted where you wanted automatically .
Note that if several shapes are selected, each will get a different text but they will all respect your specifications.
This also works while in text-edit mode inside a shape.