It was a hit in Houston. A phenomenon in Phoenix. Now, for the first time in Delaware, a “Run Or Dye” 5k running event has brought its colorful hijunks to the streets of Dover. Thousands turned out for “the world’s most colorful 5K” on Aug. 17. More than 3,000 runners hoping to be splattered in eco-friendly, technicolor cornstarch dye signed up during the first week of registration for the Dover run, which was the fastest pace in the event’s history.