//color label
table->attach(*manage(new Gtk::Label(_("R: "))),3,4,0,1,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);
table->attach(*manage(new Gtk::Label(_("G: "))),3,4,1,2,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);
table->attach(*manage(new Gtk::Label(_("B: "))),3,4,2,3,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);
table->attach(*manage(new Gtk::Label(_("A: "))),3,4,3,4,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);
//color label
table->attach(*manage(new Gtk::Label(_("R: "))),3,4,0,1,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);
table->attach(*manage(new Gtk::Label(_("G: "))),3,4,1,2,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);
table->attach(*manage(new Gtk::Label(_("B: "))),3,4,2,3,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);
table->attach(*manage(new Gtk::Label(_("A: "))),3,4,3,4,Gtk::EXPAND|Gtk::FILL,Gtk::SHRINK|Gtk::FILL);