The fill tool looks like a paint bucket being poured out.
If you do scan your drawing, just open the file in MS Paint in order to start turning it into a beautiful drawing, but be sure you have the original sketch saved separately somewhere else too (in case you make mistakes and need to start over).
The black is important. You can always change the color of these outline lines later, but for now do them in black.
Saving a copy of just your plain black lines can be really helpful, especially if you make a mistake and need to restore them.
Crop images. Cropping in MS paint can actually be easier than in some other programs, since all you have to do is drag around the corners of the image. Cover small problems. Copying and pasting small selections that can band-aid small problems with an image is pretty easy with MS Paint, as long as you’re patient. Correct red eye. If you have some dark pixels you can copy and paste or if you feel like you can use the freehand tools, then fixing red eye is very doable in a program like MS Paint.
One program that you might find useful is a free program called Oekaki. This is similar in look to MS Paint but has many more features. You don’t even have to download anything. Many websites have Oekaki as an app within a web browser. This program allows some actual layers, much like Photoshop, which means you can make much nicer pictures. If you want to use a program that is more powerful but you don’t want to spend the money on Photoshop, know that there are alternatives. Paint Tool Sai, Manga Studio, and many other programs which are similar to Photoshop can be purchased for $20-50.
