Hello @UPCDisplays ,
Some of the pre-built email templates will have inner background graphics that are hard-coded into them, similar to borders. At this time, these types of graphics can't really be edited. In your example, the background fill color can still be changed via the side gear button that shows when mousing over it. However the little bust graphic can't be removed without wholly removing the block.
This kind of hard-coding is only really available if you explicitly request a unique design via a custom design service order, or by coding your own email via the custom code editor.
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