Topic: new CT icons
Currently the number of different CT symbols/icons is very limited. Different cans or robot as far as I can see. The result is that we have to read the titles to find a specific CT. This will become painful as soon as more and more people have more and more CTs in their containers.
An easy way to improve this could be to simply take the image of the item that can be produced with the CT, transform it into grayscale and display it with blue color (or any other).
This could be done on the fly each time a CT symbol is displayed. So there is no need to actually create new symbols.