How can I set the indent line thinner?

[themysteryboy]

My tab is 2 and the indent line will look very crowded and I want to set it thinner, my size set now is 1

[nathanaelkane]

let g:indent_guides_guide_size = 1 is the thinnest that this plugin can go. If you want thinner and you're using NeoVim, I would suggest https://github.com/lukas-reineke/indent-blankline.nvim, which can use a character as the indent guide, e.g. |.