Function loadWhiteFillIcon

pj_app/src/PreferencesDialog.cpp:53–67

The toggle's track is gray (off) ↔ blue (on); the baked `#3D3D3D` fill on the sun/moon SVGs reads as muddy dark-gray-on-blue. Recolor to pure white at load time so the glyphs pop against either track tone. Used only here — keep it local rather than promoting a helper.

// to pure white at load time so the glyphs pop against either track
// tone. Used only here — keep it local rather than promoting a helper.
QIcon loadWhiteFillIcon(const QString& resource_path) {
  QFile file(resource_path);
  if (!file.open(QFile::ReadOnly | QFile::Text)) {
    return {};
  }
  QByteArray svg = file.readAll();
  svg.replace("#3D3D3D", "#FFFFFF");
  QSvgRenderer renderer(svg);
  QImage image(64, 64, QImage::Format_ARGB32);
  image.fill(Qt::transparent);
  QPainter painter(&image);
  renderer.render(&painter);
  painter.end();
  return QIcon(QPixmap::fromImage(image));
}

}  // namespace