Definition of Theme. As a literary device, theme is the central topic or idea explored in a text.
I donât know if it has changed, but as for the Carousel ads, Facebook recommends 1800Ã1800 when i create a new ad. Hi Jon, I was previously able to replace the 470Ã246 thumbnail pulled from websites with an uploaded image on facebook.
1 Facebook Cover Photo: 851 x 315 (Iâm glad they added that extra pixel on the width) 2  Profile Picture Size: 160 x 160 (or up to 180 x 180 to upload) 3  Custom Tab Image Size: 111 x 74.  Shared Image: 403 x 504 (max)