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Enable user scripts to highlight forwarded e-mails
Tento skript by neměl být instalován přímo. Jedná se o knihovnu, kterou by měly jiné skripty využívat pomocí meta příkazu // @require https://update.greasyfork.org/scripts/40782/265774/Library%20for%20e-mail%20forward%20highlighting.js
This library is used by Tampermonkey user scripts via @require, enabling them to highlight inline forwarded e-mails (lines prepended by ">", ">>" etc.) with different background colours per quoation level. The library expects consuming user scripts to also @require mark.js and jQuery.