Node: Switching things on or off, Next: Filtering by brightness, Previous: Essential parameters, Up: Parameters
| switch milky_way on/off | Parameter | 
| switch nebulae on/off | Parameter | 
| switch grid on/off | Parameter | 
| switch ecliptic on/off | Parameter | 
| switch boundaries on/off | Parameter | 
| switch constellation_lines on/off | Parameter | 
| switch labels on/off | Parameter | 
| Print or don't print the respective (class of) object(s) on the map. 
`Grid' means the coordinate grid, `boundaries' are the borderlines of
the constellations, and `constellation lines' denote the lines between
the brightest stars that are supposed to help to see the shape of a
constellation. Defaults: off (Milky Way), on (all others) | 
| switch colored_stars on/off | Parameter | 
| If switched on, all stars get a colour that represents their real colour
according to their spectral class.  This may be unsuitable on a bright
background since most stars are pretty white. If switched off, all stars get the colour given by ` Default: on |