If you have noticed an icon with 2 small blue overlays, then know that it has been placed there by the Windows OS to indicate that the file or folder has been compressed to save disk space.

Colored plastic overlays — particularly blue and gray — used on books can ... reduce the contrast effects of materials or simply use color overlays — at practically no expense — and ...

Now, people are filtering their Facebook photos with an overlay of blue, white, and red — the colors of the French flag. It's similar to Facebook's Celebrate Pride filter, a rainbow overlay that ...