In version 2015, the frame generator parts are showing as material > steel and appearance > plate.
Can someone please tell me how to get them back to grey?
Regards.
When you place the F-G part, you have the option (drop-down box) for the Material and then below that the drop-down box for Appearance. The default on my system is "As Material" which would be the "grey". You can "Open" each item and change the Appearance to "As Material" or possibly use the "Clear Overides" (color wheel with X).
Looks like someone used "Plate" earlier and possibly Inventor is defaulting to the last used option.
If you want all plate appearance to be shown as gray, you could modify it as below.