Degree: 137.5
Outer Circle Radius: 20
Outer Line Opacity: 0.5
Outer Fill Opacity: 0
Inner Circle Radius: 10
Inner Line Opacity: 0.5
Inner Fill Opacity: 0

Draw every 50:th circle * 1.1r

Draw every 10:th circle + 3r

Animate

Find an angle (degree) you like and play with the sliders and effects. To best understand the effects, put degree to 90 and try them out.
Note: Either of the effects makes the circles so big, that even 0.03 fill opacity can easily make the whole screen black.
Uncheck Animate if you get bored waiting or hypnotized watching the circles circle.

You can save your creation by right clicking on the canvas.
Any feedback or bug finds? File an issue at the git repo.