.DarkSky { fill:rgb(0,0,102); opacity:0.85; background-color:rgb(0,0,102); }
.LightSky { fill:rgb(135,206,235); opacity:0.85; background-color:rgb(135,206,235); }

[class*=_text] { text-anchor:middle; alignment-baseline:middle; }

.Altitude_circle { fill:none; stroke:grey; stroke-width:0.5; }
.Altitude_text { fill:#000000; font-size:24px; stroke:rgba(192,192,192, 0.6); stroke-width:0.8px; }

.Azimuth_text { fill:#000000; }