doublyUnderlined top-level constant
Doubly underlined.
Double-underline per ECMA-48, but instead disables bold intensity on several terminals, including in the Linux kernel's console before version 4.17.
Compatibility:
- +vscode
- -mac Terminal
- -mac iTerm2
- +as (one thick line)
See also notUnderlined and underline.
Implementation
const String doublyUnderlined = '${csi}21$sgr';