Function stackCellPalette

src/ui/diff/rowStyle.ts:111–140

(
  kind: StackLineCell["kind"],
  theme: AppTheme,
  moveKind?: StackLineCell["moveKind"],
)

/** Pick stack-view colors from the semantic diff cell kind. */
export function stackCellPalette(
  kind: StackLineCell["kind"],
  theme: AppTheme,
  moveKind?: StackLineCell["moveKind"],
) {
  if (kind === "addition") {
    return {
      gutterBg: moveKind ? theme.movedAddedBg : theme.addedBg,
      contentBg: moveKind ? theme.movedAddedBg : theme.addedBg,
      signColor: theme.addedSignColor,
      numberColor: theme.addedSignColor,
    };
  }

  if (kind === "deletion") {
    return {
      gutterBg: moveKind ? theme.movedRemovedBg : theme.removedBg,
      contentBg: moveKind ? theme.movedRemovedBg : theme.removedBg,
      signColor: theme.removedSignColor,
      numberColor: theme.removedSignColor,
    };
  }

  return {
    gutterBg: theme.lineNumberBg,
    contentBg: theme.contextBg,
    signColor: theme.muted,
    numberColor: theme.lineNumberFg,
  };
}

/** Format one optional line number for a fixed-width diff gutter. */
export function diffLineNumberText(value: number | undefined, width: number) {