Use this menu option to link and unlink the primary and 
secondary colours within the Palette.
            The keyboard shortcut is Ctrl+L.
When colours are linked to the primary colour, they are treated as the primary colour for as long as they remain linked. In the 2D and 3D views, all colours linked with the primary colour are displayed in the primary colour.
In the Palette, all linked 
colours are displayed as smaller swatches, and these are joined by a short, 
horizontal line. For example:
  Primary colour
 Colours linked to primary 
colour
To toggle the linking of the secondary colour with the primary colour, click the in the Palette.
To link colours, click and drag an unlinked colour swatch onto the colour swatch to which you want to link.
To unlink colours, click and drag a linked colour swatch onto 
the colour swatch with which it is already linked. The unlinked colour swatch 
returns to its original position.
      When you move the cursor over a colour swatch in the Palette, it is displayed as 
. When positioned outside of a colour swatch, the cursor 
is displayed as 
 .
See Also