Sketch App

Panning

Draw Line

Draw Simple Curve

Draw Bezier Curve

Shape template

Start Point Edit

Translate

Shape Edit

Point Edit

I/O
Parts
Edit
Help

Do this first

Then use one of these

Or use one of these after selecting a starting point

Edit lines of the selected shape

For moving one color group

For moving the whole view

LABEL	AREA	PERIM	COLOR

Vector String JSON Some third option

To complete a shape and move on to drawing a new one, press c. This will also automatically draw the last line for you!
To zoom in and out, press z and x, respectively.
Use bezier curve if you know how bezier control points work! You draw the ending point and then the two control points.