Learned this the hard way last season. I switched to Sterling ropes after a similar mess with a store brand. Their basic dynamic line is way more durable for not a huge jump in price. Check the sheath for tight, even weaving before you buy anything. That cheap rope felt fuzzy right out of the bag, should have been my first clue.

Try a color remover first, then bleach if needed.

Oh man, the library thing is so real. My buddy Mark got totally into it last year. He found out his library card gets him free access to like three different movie streaming apps, plus all the audiobooks he could ever want. He canceled two of his subscriptions that same week.