Add new border style: 'thinblock'

[mikesmithgh]

I saw that you recently added the block border and would like to introduce a thinblock border as well. It is using the symbols from https://www.unicode.org/charts/PDF/U1FB00.pdf Symbols for Legacy Computing, ONE EIGHTH BLOCK elements.

I searched for all places with BorderBlock and added BorderThinBlock. One thing to note about the symbols is that they a font specific, and may not exist or may not align perfectly depending on the font and terminal emulator. In the case of Kitty terminal, box drawings are handled by Kitty rather than the font so it appears correctly regardless of the font.

MonaLisa font missing the corner symbols in Alacritty:

Iosevka font in Alacritty

Iosevka font in Wezterm

Iosevka font in iTerm2

MonaLisa font in Kitty

MonaLisa Font: https://www.monolisa.dev/
Iosevka Font: https://github.com/ryanoasis/nerd-fonts/releases/download/v3.0.2/Iosevka.zip

Please let me know what you think. Thanks!

[junegunn]

Thanks, I like it. I would like to have a more terse name than thinblock, but I can't think of a better one.

Unfortunately, it's not properly rendered on iTerm2 with the default font I use, but I can confirm that it's properly supported in other emulators.

On Hyper terminal

[mikesmithgh]

Thanks, I like it. I would like to have a more terse name than thinblock, but I can't think of a better one.

Unfortunately, it's not properly rendered on iTerm2 with the default font I use, but I can confirm that it's properly supported in other emulators.

On Hyper terminal

Thanks. Yeah, I wasn't sold on thinblock either 😂. I think one-eighth-block would be the most accurate. But, I kind of like narrow. Here are a couple that came to the top of my head:

--border=one-eighth-block
--border=narrow-block
--border=narrow
--border=thinblock
--border=solid
--border=thin
--border=line
--border=outline
--border=edge

Another option is to allow a custom block and the user specifies the characters in a comma delimited list.

[junegunn]

Let's just go with thinblock. I think we need to keep block in its name as we can see it as an alternative to the existing, more widely supported block and it shares the same properties of it (i.e. good for different background color)

[junegunn]

Merged, thanks!