Del. Code tit. 15 § 7524
No party shall use the name of another party appearing anywhere on the ballot either in whole or in part, or any variation thereof, in its own title. The words "Independent" or "Decline," being terms employed in this title, or any variation thereof, shall not be used as the title, or part of the title, of any party. Each party shall select an appropriate figure or device to designate that party, but the coat of arms, seal or flag of the United States, this State or the City of Wilmington, or any part or variation thereof, shall not be used as such figure or device.
In case of a division in any party qualified under this subchapter and a claim by 2 or more factions to the same party name or title, figure or device, the State Board of Elections shall determine to which faction the name and device properly belong. If, within 5 days thereafter, the other faction fails to present and certify some other party title and/or device, the Board shall select some suitable title and/or device to represent that party upon the ballot.
15 Del. C. § 7524