clear cover on overflow

[SeeFu]

Are there any issues with having a clear cover on the overflow? I'm having clearview lids make a cover for my tank, but there's any issue with clearance on my overflow lid.

 

[AnotherReefHobbyist]

please clarify, clear cover vs what? no cover? or like a different colored cover?

 

[Snoopy 67]

Possible Algae would be the only concern.