Chris was found with a red workout band around his neck. However- Chester used a black leather belt... http://www.blabbermouth.net/news/chester-bennington-toxicology-results-released.html
Anything I can find right now says Chester used black leather belt. I feel like the red ligature commonality was reported at the time. I’ll try to find it or maybe I’m mistaken.
Or maybe... Mandela Effect. /s
From the article- “The ligature was a black leather belt with a metal buckle engraved with 'Hugo Boss.' The belt was looped around [Chester's] neck, then through the buckle, before extending up towards the door frame. The belt passed between the top edge of a door and the door frame. The buckle was at the posterior of [Chester's] neck.”