The white letters on "clear" glass background was something that I observed at the Houston Police Departments' downtown headquarters building a few years ago...
And since I don't work downtown anymore, I cannot confirm if what I heard after that that they removed the signage at their front entrance on Travis Street...
I remember walking to lunch one day and going up to take a really close look at it, for the most part the size and verbage was dead on correct...
The contrast forced me to get right up on it to actually read it and understand it...
A uniformed officer came out of the door (beside me) and saw me looking at it and I told him that the sign didn't appear to meet the "contrasting" portion of the law...
He told me "Well, you can see it now can't you?", "That makes it legal and compliant!"
"Are you carrying now?"
"Is this a formal official inquiry?"
[officer] "No."
"I'm going to lunch, see you later..." (Steve walks off)

"Perseverance and Preparedness triumph over Procrastination and Paranoia every time.” -- Steve
NRA - Life Member
"Quis custodiet ipsos custodes?"
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