I'm not really convinced by the general mindset of ths discussion. What programs need is not to display a "png file" inside the terminal. What you want is to

I'm not really convinced by the general mindset of ths discussion. What programs need is not to display a "png file" inside the terminal. What you want is to access the individual pixels of a rectangular framebufer using serialized escape sequences. That way you can intetact with the images.