mImpl->mRenderer.ReserveCustomProperties(CUSTOM_PROPERTY_COUNT);
mThicknessIndex = mImpl->mRenderer.RegisterUniqueProperty(DevelArcVisual::Property::THICKNESS, THICKNESS_NAME, mThickness);
mImpl->mRenderer.ReserveCustomProperties(CUSTOM_PROPERTY_COUNT);
mThicknessIndex = mImpl->mRenderer.RegisterUniqueProperty(DevelArcVisual::Property::THICKNESS, THICKNESS_NAME, mThickness);