Easy to read at small sizes so you can have a lot of code. 1 and i are not similar. 0 and O are different. Looks good as white on black (or bright on black anyw

Easy to read at small sizes so you can have a lot of code. 1 and i are not similar. 0 and O are different. Looks good as white on black (or bright on black anyway). Spacing between the letters is correct for use in code. Etc.