Color‑code threadmarks, per-threadmark jumplist of all the chapters with a similar name.
An experiment to enable reading series inside snippet threads. Adds an icon above each threadmarked post; clicking it opens a jumplist to threadmarks with the same prefix.
(Disabled feature:) Colorize similar threadmarks like in the screenshot below by setting const COLORIZE_ALL = true.
Note: Similarity is based on 2-word prefixes (ignoring numbers and special words) and may fail to match 1-word prefixes.
Note: Pressing the icon scrapes the threadmark list only if the threadmark-count changed (they are cached in localStorage otherwise. LS was chosen instead of GM to not pay the injection cost on every load. #todo only keep last N in LS in case of heavy use [5mb limit].) 
credit: Fate/Die By Desire by Menwearpink
