This is a notepad program. Use the \clear command to remove a line from your notes! Use the \clearall command to get rid of all notes Use the \setcolor and add a number to the end to set the color to a certain color. Please don't add a space between the \setcolor and the number. Max line number is 10 For CAS Studio Thx to @Sheep_tester for their pen text engine I added more commands and a \ (backslash) in front of commands