New parts

[moritz-fivi]

Add Beckhoff EL6751 and KL9300.
Add Lucid Triton RGB Camera and Helios 2 ToF Camera

[plc-user]

I'm not sure if we really need the different-colored references. Especially for the rotated references, I'd say “no,” because we have the rotation function available via the spacebar.
If we wanted to take this approach consistently, we’d also have to offer many other colors like “orange,” “purple,” etc., to accommodate other buses (CAN, ProfiBus, etc.), position sensors, etc.
But I’d be happy to be convinced if one can provide a plausible explanation.

[moritz-fivi]

The rotation function is missing some features to be useful for reference text. It would be beneficial if the text could stay in place and automatically flip that it stays readable from the bottom or the rigth side.
KiCAD has this function implemented:

In Qelectrotech you have two option, that the text maintain visual roation or ist stays compledly locked in place with the element.
In QElectroTech, you have two options: either the text maintains its visual rotation, or it stays completely locked in place with the element.
When the “maintain visual rotation” option is enabled, the text shifts to incorrect positions. When it is disabled, the text appears upside down or rotated to the right:

As a workaround I created two roations of the reference with the fixed text to be able to always place the text that it is redable from bottom or the right.

I understand that having every cable color may be excessive. I started with the large red ones and the mux/demux elements as a workaround for multi-wire cables, inspired by the EPLAN cable function. The red color and increased line width were intended to highlight that this is a multi-wire cable rather than a single wire.
Would it be better to keep only the red version, or also include a neutral black option?

The best solution would probably be to implement a function that allows elements to inherit the wire color from a connected terminal and automatically map to it.