plotext plots directly on terminal

- it allows for scatter, line, bar, histogram and date-time plots (including candlestick),
- it can also plot error bars, confusion matrices, and add extra text, lines and shapes to the plot,
- you could use it to plot images (including GIFs) and stream video with audio (including YouTube),
- it can save plots as text or as colored html,
- it provides a simple function to color strings,
- it comes with a dedicated command line tool