colorscheme_default()
Preset blue and cyan color scheme (default)
colorscheme_orange_black()
Preset yellow and black color scheme.
colorscheme_purple_ivory()
pioDisp()
Display some content.
pioHdr()
Print a header
pioStr()
Print a string `A = ...`.
pioTit()
Print a title.
pioTkn()
Tokenizer.