Spinner
From FLWiki
A spinner is a small circle resembling a pie chart that displays a value in the range 0.0 ... 1.0 (for confidence values) or -1.0 ... 1.0 (for edge weights.) Confidence values outside the range of 0.0 ... 1.0 are displayed as a filled red circle.
All edge weight spinners and confidence spinners of driver entities can be clicked and dragged on and manipulated to change their values. Drag to the right or up (but not diagonally) to increase the value, or to the left or down (but again, not diagonally) to decrease the value. While dragging, the Shift key can also be used to constrain the value to 0.05 (5%) increments, and the up and down arrow keys can also be used to "nudge" the value up or down in 0.01 (1%) increments.

