Module border 

Whole-cell box-border glyph sets: PLAIN, ROUNDED, DOUBLE, and THICK.

Constants

DOUBLE

Double-line box-drawing characters (╔═╗║╚╝).

PLAIN

Single-line box-drawing characters (┌─┐│└┘).

ROUNDED

PLAIN with rounded corners (╭─╮│╰╯).

THICK

Heavy (thick) single-line box-drawing characters (┏━┓┃┗┛).