dynamic_cast<Gtk::Misc*>(button_reset->get_child())->set_padding(0,0);
//button_reset->set_size_request(16/3,16/3);
button_reset->signal_clicked().connect(sigc::mem_fun(*this,&Widget_Defaults::on_reset_color_clicked));
dynamic_cast<Gtk::Misc*>(button_reset->get_child())->set_padding(0,0);
//button_reset->set_size_request(16/3,16/3);
button_reset->signal_clicked().connect(sigc::mem_fun(*this,&Widget_Defaults::on_reset_color_clicked));