For the best results make sure the image for logo is at least 200px x 200px in size.
If the logo contains writing or an image be sure to center them in the image. If it is too close to the edges it may get cut off.
Your background image should be 1200px x 650px minimum.
It can be larger but may get cut off.
You can also change the color of the writing by adding the hex color code into the ‘Main Color’ box.