Index - B
| between | Extras.Cw |
| beyond | Extras.Cw |
| bk | Extras.Turtle |
| black | Prelude |
| blank | Prelude |
| blue | Prelude |
| Bold | Prelude |
| Bool | Prelude, Core |
| bright | Prelude |
| brighter | Prelude |
| brown | Prelude |
| butLast | Extras.Util |
| button | Extras.Widget |
codeworld-base-0.2.0.0: Replacement base module for CodeWorld