I would like to state for the record that neither of my posts in this thread stated that, simply because it all depends on what flavor of RetroBright you use. For example...
Did you use the liquid or gel form?
What percentage of H202 did you use?
For how many hours did you deyellow under direct UV exposure?
In my experience, with 3% H202 in gel form, no stickers/labels were every damaged even in the slightest bit. But as I stated previously, I did not glob the gel onto the stickers affixed to the back of my SE/30 case either. Therefore, your mileage may vary. But if you do have problems, or even if you don't, please provide details about exactly why kind of RetroBright method you used, as well as the H202 concentration percentage.
Now as to the Apple logo and why you should remove them from the front of the SE/30's housing BEFORE you deyellow, I can say that I removed it not so much because it "was painted" but rather because it is metal underneath that paint. Since RetroBright will react with the metal, that reaction on the metal will bubble off any paint on it. I've seen photos of this in other forums.