On 9 Nov 2005 12:02:06 -0800, "No" wrote:

I have see backed insulation painted (Sprayed). Sometimes the printing
can bleed through and may require many coats. Not sure how Starbucks
does it, I don't go that often and never noticed.

Exposed insulation of most types is a fire hazard and code
violation. Homasote makes insulated panels in a fairly stark
white, (which will reduce your need for lighting) that you could
subsequently paint.