Well after 3 days of sitting in front of the computer for like 8 hours a day I'm waiting for the extension to be reviewed by Google to be published. I deferred the publishing though, so it won't be automatically put on the store. There's still a few bugs I'm working out.
I actually ended up deleting the vast majority of the original code, and re-writing it in a way that I could more easily understand. Functionality is nearly identical to the original, but there are some differences that set mine apart. Namely the ability to download notes from the options page of the extension, and freely adjust the background and text color with HTML color pickers.
The UI for the notes and options page is improved. Instead of using plain text HTML character codes for icons like the original, I used Material icons.
Using ExtensionPay to monetize. $1.99 a year. Users can install the extension for free since Google got rid of webstore payments, but it's essentially a free trial. No subscription restricts the user to 2 notes, and they can only set the colors of the notes from a handful of presets; exact colors cannot be set, only the presets can be applied.
I plan on adding more features depending on how many people like this. Features like labels to categorize/organize notes, a way to pin the notes so they scroll with the page, a reminder system that will send a push notification of a note to the user, ability to download the note to your phone by scanning a QR code, a way to search notes on the options page, etc.
I'm very hopeful I can get at least $20-$30 a month from this. Like again, if this other guy can get 9,000+ for something as half baked as the original code, I should be able to get at least 10 people or so a month. With how many schools use Chromebooks, there's gotta be some students who will want this.
I'm hoping I can use this as an opportunity to get more serious about coding again, and perhaps make a small career out of creating extensions/PWAs. If one app gets me at least $20-$30 a month, I just need to make a few to get an extra $100+ a month.
The less time I need to be on the road to make money the better I say. With that said, it's 2:21am and I need to drive Sierra's cousin home from work at 7:30am lol. He's paying me $30 round trip each day until he can get a car. I drop him off at work at 11pm, pick him up at 7:30am. It's kinda tiring, but by the time I get done taking him home in the morning I find myself staying awake the whole day so. It's some good guaranteed money though, plus I've been doing some delivery gigs here and there in between.