Function extractTxPrStyle

apps/sim/lib/pptx-renderer/renderer/chart-renderer.ts:717–760

* Extract text color/font size from a txPr node: * txPr > p > pPr > defRPr (solidFill + sz).

(
  parentNode: SafeXmlNode,
  ctx: RenderContext
)

 * txPr > p > pPr > defRPr (solidFill + sz).
 */
function extractTxPrStyle(
  parentNode: SafeXmlNode,
  ctx: RenderContext
): { color?: string; fontSize?: number; bold?: boolean; fontFamily?: string } | undefined {
  const txPr = parentNode.child('txPr')
  if (!txPr.exists()) return undefined

  for (const p of txPr.children('p')) {
    const pPr = p.child('pPr')
    if (!pPr.exists()) continue
    const defRPr = pPr.child('defRPr')
    if (!defRPr.exists()) continue

    const style: { color?: string; fontSize?: number; bold?: boolean; fontFamily?: string } = {}
    const fill = defRPr.child('solidFill')
    if (fill.exists()) {
      const c = resolveColorToHex(fill, ctx)
      if (c) style.color = c
    }
    const sz = defRPr.numAttr('sz')
    if (sz !== undefined && sz > 0) {
      // OOXML sz is 1/100 pt. Keep renderer's existing px-scale convention.
      style.fontSize = Math.round(sz / 100)
    }
    const b = defRPr.attr('b')
    if (b === '1' || b === 'true') style.bold = true
    else if (b === '0' || b === 'false') style.bold = false
    const latinTypeface = defRPr.child('latin').attr('typeface')
    const eaTypeface = defRPr.child('ea').attr('typeface')
    const csTypeface = defRPr.child('cs').attr('typeface')
    if (latinTypeface || eaTypeface || csTypeface) {
      style.fontFamily = latinTypeface || eaTypeface || csTypeface
    }

    if (
      style.color ||
      style.fontSize !== undefined ||
      style.bold !== undefined ||
      style.fontFamily !== undefined
    )
      return style
  }
  return undefined
}

function getChartThemeFontFamily(ctx: RenderContext): string | undefined {
  return (