Its just a standard numeric gauge, with the start/end points set to the same position in the control editor.
You can change the colour of the needle at design time in the control editor - click on the paintbrush icon in the Quick Edit window then right-click with the brush over the needle. I don't think there is a direct way to show segments in different colours, but by making the control background transparant you could draw it over the top of a canvas/bitmap which had the colour scheme you want.
JR