Hey @JamesR146, thanks for reaching out! I took a look at the campaign you had referenced and it looks like this issue is caused by the "Inner Background" color being white in the "Design" tab. If you click on the color box to change the color, there is a "Recent Colors" section there in which has the blue that was used in this template. In my tests, changing this white color to the Navy Blue color forced the divider backgrounds to assume that color.
Having an eyedropper type tool could definitely come in handy though as the Recent Colors don't always retain the colors users want as it's limited to the last 10 colors. I've opened this idea up for voting so we can collect additional feedback from other users on a tool like this.
On a side note, thanks so much for providing the screenshot and additional information! This post may help ease the process of obtaining the HEX value for the color, however, there are also third party plugins that you can install into your browser that may be easier/ more convenient to use than Color Cop, such as ColorZilla.
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