ToxiicRaiinTV

I was wondering if there was a way to have a multi-colored outline like the picture I provided. I really like the look of this type of outline but I have no clue how to achieve that look! I don't know if there is a plugin I can use or if there is a certain method that I just haven't figured out but either way I would love to know how to do this!

I've inserted an example of what I'm looking for

I'm looking for a plugin that gives a good looking comic book effect. If there is one, please let me know. If not, I request that it gets made please.

Could anybody make (if not already made) a plugin which gives an image a dirty, worn down effect to it. If it already exists then I might be searching for the wrong thing, but I'm not entirely sure how to word it. I know about the film plugin but that just adds grain, I want it to look dirtier. Below is a picture that kind of shows what I'm looking for. See how it looks kind of....dirty. How do I do that?

I've been using paint.NET for years now and I know that this is probably a simple google search but I figured why not possibly help someone else out with my curiosity. So, what does noise do? I thought this was a photo editing program XD (Just kidding of course). But legit, I have no idea what it's used for.

Is there any difference between the Microsoft store version and the free version?

I mean...I don't know if sharp is the word I'm looking for but I guess...professional looking?

Really anything I guess, there's just so many plugins to install that I don't possibly have enough time to go through all of them. So i guess to narrow it down, what would be ideal for some REALLY GOOD thumbnails/pictures?

I am using paint.NET as a photo editor for mainly my YouTube thumbnails and such. I was wondering if anybody has any reccomendations as to what plugins to install to make my thumbnails look EVEN better? And maybe even plugins to use for other things. It would be much appreciated.

Are there any plugins for paint.net that allow me to rescale the image? I have been looking for a while now and can't seem to find what I am looking for.

I have looked everywhere for a plugin on Paint.NET that allows me to use a background eraser tool like the one in Photoshop and have had no luck at all. This seems like something that would already exist and be extremely popular but, apparently I thought wrong. I would highly appreciate if anybody that knows how to do this kind of thing could do it. This would really save me time in the long run of things.