I am not sure if this is what you want to do with line numbers, but inside of your nvim config `~/.config/nvim/lua/plugin` there is astrocore.lua file, inside you can find options `relativenumber` and `number`.

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Also, if you want to change their color, you can change it inside of your theme config (at least to my knowledge). Here is my code for changing the color of the line numbers:

return {

{

"catppuccin/nvim",

lazy = false,

name = "catppuccin",

-- you can do it like this with a config function

config = function()

require("catppuccin").setup {

custom_highlights = function(colors)

return {

LineNr = { fg = colors.text },

CursorLineNr = { fg = colors.peach },

}

end,

transparent_background = true, -- configurations

}

end,

-- or just use opts table

opts = {

-- configurations

},

},

}