Function applySelectionPrefix

src/ui/diff/renderRows.tsx:845–850

Apply the selection-highlight blend to a prefix descriptor.

(prefix: P, theme: AppTheme)

/** Apply the selection-highlight blend to a prefix descriptor. */
function applySelectionPrefix<P extends { bg: string }>(prefix: P, theme: AppTheme): P {
  return {
    ...prefix,
    bg: selectionHighlightBg(prefix.bg, theme),
  };
}

/** Render one split-view cell as prefix + gutter + content spans. */
function renderSplitCell(