Hit the numbered list icon, and each item will have its own bullet. The indent effect is much the same as 'tab' in a word processor. This icon is used for alignment. Click on your choice, and your highlighted text will be aligned. This pull-down menu allows you to change font face.
Variable width is most common - it means that different letters take up different amounts of space.
Below those two options, you'll see a list of the fonts installed on your system. Just remember that not everyone viewing your page will have the same fonts - and design accordingly. Hit the font color icon, and choose a color from the pull-down menu. But keep in mind that dark colors read best on light backgrounds, and light colors read best on dark backgrounds.