Signal aspect display in cabview

Some years ago I added the functionality to display signals that the train is going past, to be displayed in the cab view. This is of course needed when driving a train manually using the cab view - for the same reason that the real train driver needs to see the signals... below are some examples of how signals are displayed...

Here the train sits at an Hp00 signal

Hp1

Hp2

Hp0Sh1

Distance signals too...
Vr0

Vr1

Vr2

and one has to handle the distance signal combined with a main signal...
Hp1Vr0

Hp0 - the "Dunkelschaltung" rule means the distance signal is all off

Hp1Vr1

Hp1Vr2

and finally the shunting signals:

Sh0

Sh1

The images displayed in these cab views predate the installation of the signals on the layout - I need to update them!