Bug: the warning color does not displayed correctly.

[mt1ger]

Self Checks

• [x] I'm using the latest lualine.
• [ ] I didn't find the issue in exsisting issues or prs.

How to reproduce the problem

Expected behaviour

The warning icon should be some colors in the yellow region.

Actual behaviour

The warning icon is dark.

Minimal config to reproduce the issue

call plug#begin('~/.vim/plugged')

Plug 'sainnhe/gruvbox-material', {'frozen': 1}
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'nvim-lualine/lualine.nvim'

call plug#end()

colorscheme gruvbox-material 
set background=dark
let g:gruvbox_invert_selection='0'

lua << EOF
require('lualine').setup {
    options = {
        theme = 'gruvbox-material',
        section_separators = {'', ''},
        component_separators = {'|', '|'}
    },
    sections = {
        lualine_a = {'mode'},
        lualine_b = {'branch'},
        lualine_c = {
            {
                'filename',
                file_status = true,
                path = 2
            }
        },
        lualine_x = {
            {
                'diagnostics',
                sources = {"coc"},
                sections = {'error', 'warn', 'info', 'hint'},   
                colored = true,
                symbols = {error = ' ', warn = ' ', info = ' ', hint = ''},
            },
            'encoding', 'filetype'
        },
        lualine_y = {'progress'},
        lualine_z = {'location'},
    }
}
EOF

Config

Aditional information

[shadmansaleh]

By default diagnostics component looks for DiagnostcWarn, LspDiagnosticsDefaultWarning, DiffText highlight groups in said order https://github.com/nvim-lualine/lualine.nvim/blob/1ae4f0aa74f0b34222c5ef3281b34602a76b2b00/lua/lualine/components/diagnostics/config.lua#L34

Your colotscheme probably doesn't define those groups properly.

You can check colors of those hl_groups to verify:

:hi DiagnostcWarn
:hi LspDiagnosticsDefaultWarning
:hi DiffText

You can overwrite the default colors easily with diagnostics_color option

require'lualine'.setup {
       lualine_x = {
            {
                'diagnostics',
                sources = {"coc"},
                sections = {'error', 'warn', 'info', 'hint'},   
                colored = true,
                symbols = {error = ' ', warn = ' ', info = ' ', hint = ''},
                                diagnostics_color = {
                                       warn = { fg = '#ffa500'},
                                }
            },
            'encoding', 'filetype'
        }
}

[mt1ger]

Sorry for the late reply, thank you.

[shadmansaleh]

Welcome.