u/Usual_Farm7617 and u/SiriusFoot already posted my favorite YouTube docs, but if you want a wider selection you can check out https://topdocumentaryfilms.com/. It is a collection of free documentaries on a wide variety of topics. Somehow I still like those YouTube channels better, but its a good site to bookmark. Source: about 1 year ago

• Documentaries:(Find mostly on Hulu, Netflix, or Youtube). Fairly comprehensive list can be found here: http://topdocumentaryfilms.com and archive.org. Source: over 1 year ago

I don't have any off the top of my head but check out this site. Source: over 1 year ago

Topdocumentaryfilms.com you can watch the best documentaries here. Source: about 2 years ago

• Documentaries:(Find mostly on Hulu, Netflix, or Youtube). Fairly comprehensive list can be found here: http://topdocumentaryfilms.com and archive.org. Source: over 2 years ago

I'm not sure if it works on Finder, but you can use Pictogram and use icon files from macOS Icons to change the app icons. Source: about 1 year ago

If you don't want to change the icon manually everytime after an app update, you should get Pictogram. Source: about 1 year ago

You can also use Pictogram for the custom icon to persist through the updates. Source: about 1 year ago

Pictogram is free and does the job. It doesn't work with apps from the App Store, but neither do any of the alternatives so if you want to customize those you'll have to do it manually. Source: about 1 year ago

That will not persist across app updates. Pictogram can do this though (it's free). Source: over 1 year ago