R_PolygonVertex(coord-v_forward, '1 0 0', rgb, panel_fg_alpha);
R_PolygonVertex(coord-v_right*3-v_forward*2, '1 1 0', rgb, panel_fg_alpha);
R_EndPolygon();
R_PolygonVertex(coord-v_forward, '1 0 0', rgb, panel_fg_alpha);
R_PolygonVertex(coord-v_right*3-v_forward*2, '1 1 0', rgb, panel_fg_alpha);
R_EndPolygon();