You can specify the thickness of the line up to 100 pixels. You can also select the color of the keyline from the Color Picker by double-clicking on the color square. You may also use the six preset options or save your own custom settings.

Examples of Keylines

Black 18: R: 0   G: 0   B: 0   Weight: 18px

R: 160   G: 23   B: 22   Weight: 50px