How to Customize a BTS and a BTS Antenna Tiny Type (using the API)

IltSettings.SetValue("BTS.TinyType.Standard.Renderer",
  new IltTinyImageBaseRendererFactory(YOUR_IMAGE, YOUR_IMAGE_PARAMETERS));
 
IltSettings.SetValue("BTSAntenna.TinyType.Standard.Renderer",
  new IltTinyImageBaseRendererFactory(YOUR_IMAGE, YOUR_IMAGE_PARAMETERS));

How to Customize a BTS and a BTS Antenna Tiny Type (using CSS)

The CSS property to customize is tinyRenderer.

setting."ilog.tgo.model.IltBTS.TinyType"[name="Standard"] {
   tinyRenderer: @+btsTinyRendererFactory;
}
#btsTinyRendererFactory {
   class: 'MyBtsTinyRendererFactory';
}
 
setting."ilog.tgo.model.IltBTSAntenna.TinyType"[name="Standard"] {
   tinyRenderer: @+btsAntennaTinyRendererFactory;
}
Subobject#btsAntennaTinyRendererFactory {
   class: 'MyBtsAntennaTinyRendererFactory';
}