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.
My friend Louise Myers has produce an excellent infographic detailing all of the key sizes we need, including: 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)