How do you change the crewmember and PC portraits?

So, in games like Zafehouse Diaries, you can create characters by inserting portraits, assign skills, personality, etc. I know Sunless Sea isn’t that kind of game, but even so, I was wondering if anyone found out a way to change portraits, edit fluff text, sidequests, that sort of thing.

For image replacement, look at C:\Users(Your username)\AppData\LocalLow\Failbetter Games\Sunless Sea\images\sn

Editing text is not recommended because they store all the text in a gigantic .json file and is really hard to navigate.

Note that you will have to replace image after update!

I really should’ve mentioned this before, but I’m using the GOG version.