Let's do an other quick update.
The signal brackets are completely moddeled. The signals will be freely placeble. Due to limitations with the game, and sadly with Better Signals, I won't be able to make these fully functional as intended. Their prototypical use is to indicate what direction the train is going entering the station (or yard or even a branch of the main line). The different heights indicate no speed restriction needed for going "straight forward", the lower version means a lower speed is needed because a switch wil be taken on the diverging route.

The smaller bracket has 2 different heights (low and middle) The one on the right will be diverging and on the left "straight on"
The larger bracket also has 2 different heigts, yet these are the middle and high one. This situation is used if all the signals are combined with a pre signal.
Visualisation of these situations will follow in the next update when I've finished al variations