Function resolveFill

apps/sim/lib/pptx-renderer/renderer/style-resolver.ts:220–264

(spPr: SafeXmlNode, ctx: RenderContext)

 *   - '' for blipFill (handled by ImageRenderer) or no fill found (inherit)
 */
export function resolveFill(spPr: SafeXmlNode, ctx: RenderContext): string {
  // solidFill
  const solidFill = spPr.child('solidFill')
  if (solidFill.exists()) {
    const { color, alpha } = resolveColor(solidFill, ctx)
    return toCssColor(color, alpha)
  }

  // gradFill
  const gradFill = spPr.child('gradFill')
  if (gradFill.exists()) {
    return resolveGradient(gradFill, ctx)
  }

  // blipFill — handled externally by ImageRenderer
  const blipFill = spPr.child('blipFill')
  if (blipFill.exists()) {
    return ''
  }

  // pattFill — pattern fill rendered as CSS repeating gradient
  const pattFill = spPr.child('pattFill')
  if (pattFill.exists()) {
    return resolvePatternFill(pattFill, ctx)
  }

  // grpFill — inherit fill from parent group
  const grpFill = spPr.child('grpFill')
  if (grpFill.exists()) {
    if (ctx.groupFillNode) {
      return resolveFill(ctx.groupFillNode, ctx)
    }
    // No group fill context available — fall through to no fill
    return ''
  }

  // noFill
  const noFill = spPr.child('noFill')
  if (noFill.exists()) {
    return 'transparent'
  }

  // No fill found — inherit
  return ''
}

// ---------------------------------------------------------------------------
// Pattern Fill Resolution