Feature Request : Colours

@ochko The pseudocode is awesome. It would be good if you could state color the border or fill the shape
e.g 
```
You wake up (border:red)
if Night 
    Go back to sleep (fill:black)
else
   Get out of bed (fill:yellow)
   Go to bathroom (fill:blue)
   Brush teeth (border:green)
end
```