Primaries: Color Wheels 
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Shared Controls in the Primaries Palette
This section explains, in a generic way, how to use the common control interface conventions used by the Wheels, Bars, and Log modes to make adjustments. It also describes the use of parameters that are shared among all three modes.
Switching Between Primaries Tools
The icons in the upper right of the Primaries palette allow you to switch between the Primaries tools at the click of a button.
Primaries: Color Wheels Primaries: Color Bars Primaries: Log WheelsColor Balance Controls
Whether you’re using the Wheels or Log controls, Color Balance controls provide a way to adjust all three color channels of a particular range of the image simultaneously with a single move of the
pointer, according to the mode that’s currently selected. There are also a variety of keyboard modifiers that let you make specific adjustments via the GUI. These controls also correspond to the trackballs found on any of the DaVinci or third-party control panels, should you have one connected.
— Click and drag anywhere within the color ring: Moves the Color Balance indicator relative to its previous position, and rebalances the three color channels in whatever range of image tonality is governed by that control. You don’t need to drag the Color Balance indicator itself. This simulates the kind of relative control you get when using a trackball to manipulate these parameters. As the Color Balance indicator moves, the RGB parameters underneath change independently to reflect the independent adjustments being made to each channel.
— Shift-click and drag within the color ring: Jumps the Color Balance indicator to the absolute position of the pointer, letting you make faster, more extreme adjustments to the color balance governed by that control.
— Double-click within the color ring: Resets the color adjustment without resetting the corresponding contrast adjustment for that control.
— Command-click and drag within the color ring: Adjusts YRGB contrast identically as if you were dragging that control’s master ring.
— Click the reset control at the upper-right of a color ring: Resets both the Color Balance control and its corresponding master ring.