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With art selected, the Edit tab shows a Prominent Colors bar under the
wheel: a part for each row in its new color, as wide as the row's share
of the art, the largest first. Dragging the edge between two parts moves
width from one to the other; when the drag ends, the rows' current
colors move toward the new widths and the art previews the result. OK
keeps the recolor as one undo step.
- recolor.weigh {map, weights?, ids?} returns each row's share of the
uses of the art's colors and, with weights, the rows with their
current colors moved: one color at a time between rows that have a
new color, while a move brings the shares nearer the weights, the
color nearest in Lab to the row it goes to first. A row keeps its
first color, the tints of one global swatch move together, colors
that stay keep their order, and the command changes nothing. A use
counts for the row recolor.apply recolors it with, and the work is
bounded at 50,000,000 color-by-row comparisons.
- The New Color Group menu beside the link button has Save All Colors
(the new colors in row order) and Save Prominent Colors (the bar's
colors in its order); each saves a color group as its own undo step.
- The dialog's weights field drives the bar from ui.dialog.set. A new
Colors count drops it.