if (gradient_top.red > 1.0 || gradient_top.green > 1.0
|| gradient_top.blue > 1.0 || gradient_top.alpha > 1.0)
log_warning << "top gradient color has values above 1.0" << std::endl;
if (gradient_top.red > 1.0 || gradient_top.green > 1.0
|| gradient_top.blue > 1.0 || gradient_top.alpha > 1.0)
log_warning << "top gradient color has values above 1.0" << std::endl;