437 is well-known for its use of line-drawing and other artistic characters:
https://en.wikipedia.org/wiki/File:Norton_Commander_5.51.png
https://en.wikipedia.org/wiki/ASCII_art#.22Block_ASCII.22_.2...
https://en.wikipedia.org/wiki/File:Norton_Commander_5.51.png
https://en.wikipedia.org/wiki/ASCII_art#.22Block_ASCII.22_.2...
I gave up. This article describes why.