The First National Flag of the Confederacy featured a design harking back to the Union flag however differed appreciably in

https://paxtonlita906.publishlane.com/posts/embodying-history-the-role-of-civil-war-flags-in-reenactments-2

The First National Flag of the Confederacy featured a layout such as the Union flag yet differed severely in color and symbolism, emphasizing Southern independence.