default value for highlight

Hey, I didn't know ``` line_highlights = util.make_bg_highlights("#FF00FF", "#CC3300", 10), vt_highlight = util.make_fg_highlight("#CC3300"), ``` were mandatory. Cause otherwise I just don't see anything so I assumed it was broken until I tried these options. I think you should put sensible defaults By the way I tried like the doc said ``` local util = require("perfanno.util") local bgcolor = vim.fn.synIDattr(vim.fn.hlID("Normal"), "bg", "gui") require("perfanno").setup({ line_highlights = util.make_bg_highlights(bgcolor, "#CC3300", 10), vt_highlight = util.make_fg_highlight("#CC3300"), }) ``` but then ...ocal/share/nvim/lazy/perfanno.nvim/lua/perfanno/util.lua:135: Invalid format! # stacktrace: - /perfanno.nvim/lua/perfanno/util.lua:135 _in_ **hex_to_rgb** - /perfanno.nvim/lua/perfanno/util.lua:123 _in_ **make_bg_highlights** - .config/nvim/lua/plugins/perfanno.lua:8 _in_ **config** - .config/nvim/lua/config/lazy.lua:73 - nvim-main/nvim/init.lua:1