Yesterday, when sending my work to the printshop, I got a phonecall about a few graphics still being RGB / sRGB instead of CMYK. I fiddled around with all the graphics, exporting them again, replacing them. But then I remembered the resource manager, opened it and could find the RGB images quite easily. But also, a small request came up while doing this:
Showing the colorspace and/or profile in the table of the resource manager, next to size maybe.
I can imagine cases where it could take a lot of time to locate the one image that is still RBG instead of CMYK.
~ Martin