FME used to have the ability for the user to add transformers to the toolbar. I found this quite useful because I could just click on the icon for, say, AttributeCreator and not have to type it. If most users didn't use this functionality, perhaps it was because they didn't know that you could do it.
It didn't matter if the icons were all the same because you could put your mouse over it and get the name from the tooltip. Plus if you use FME a lot you knew where each transformer was on the toolbar. Can we bring this functionality back?