Header Highlight Foreground seem not to work correctly

[Mouthless-Stoat]

I try changing my header color foreground but it seem that only background work.
Config

{
    "goolord/alpha-nvim",
    event = "VimEnter",
    opts = function()
        local dashboard = require("alpha.themes.dashboard")
        local logo = {
            [[     .          .                                                                               ]],
            [[   ';;,.        ::'                                                                             ]],
            [[ ,:::;,,        :ccc,                                                                           ]],
            [[,::c::,,,,.     :cccc,   ::::    ::: :::::::::: ::::::::  :::     ::: ::::::::::: ::::    ::::  ]],
            [[,cccc:;;;;;.    cllll,   :+:+:   :+: :+:       :+:    :+: :+:     :+:     :+:     +:+:+: :+:+:+ ]],
            [[,cccc;.;;;;;,   cllll;   :+:+:+  +:+ +:+       +:+    +:+ +:+     +:+     +:+     +:+ +:+:+ +:+ ]],
            [[:cccc; .;;;;;;. coooo;   +#+ +:+ +#+ +#++:++#  +#+    +:+ +#+     +:+     +#+     +#+  +:+  +#+ ]],
            [[;llll;   ,:::::'loooo;   +#+  +#+#+# +#+       +#+    +#+  +#+   +#+      +#+     +#+       +#+ ]],
            [[;llll:    ':::::loooo:   #+#   #+#+# #+#       #+#    #+#   #+#+#+#       #+#     #+#       #+# ]],
            [[:oooo:     .::::llodd:   ###    #### ########## ########      ###     ########### ###       ### ]],
            [[.;ooo:       ;cclooo:.                                                                          ]],
            [[  .;oc        'coo;.                                                                            ]],
            [[    .'         .,.                                                                              ]],
        }

        dashboard.section.header.val = logo
        dashboard.section.buttons.val = {
            dashboard.button("f", " " .. " Find file", ":Telescope find_files <CR>"),
            dashboard.button("n", " " .. " New file", ":ene <BAR> startinsert <CR>"),
            dashboard.button("r", " " .. " Recent files", ":Telescope oldfiles <CR>"),
            dashboard.button("l", "󰒲 " .. " Lazy", ":Lazy<CR>"),
            dashboard.button("q", " " .. " Quit", ":qa<CR>"),
        }
        for _, button in ipairs(dashboard.section.buttons.val) do
            button.opts.hl = "AlphaButtons"
            button.opts.hl_shortcut = "AlphaShortcut"
        end
        dashboard.section.header.opts.hl = { { "AlphaHeaderFG", 0, 10 }, { "AlphaHeaderBG", 10, -1} }
        dashboard.section.buttons.opts.hl = "AlphaButtons"
        dashboard.section.footer.opts.hl = "AlphaFooter"
        dashboard.opts.layout[1].val = 8
        return dashboard
    end,
    config = function(_, dashboard)
        -- close Lazy and re-open when the dashboard is ready
        if vim.o.filetype == "lazy" then
            vim.cmd.close()
            vim.api.nvim_create_autocmd("User", {
                pattern = "AlphaReady",
                callback = function()
                    require("lazy").show()
                end,
            })
        end

        require("alpha").setup(dashboard.opts)
        pcall(vim.cmd.AlphaRedraw)
    end,
}

Both hightlight group AlphaHeaderFG and AlphaHeaderBG define using vim.api.nvim_set_hl():

vim.api.nvim_set_hl(0, "AlphaHeaderFG", { fg = "#ffffff" })
vim.api.nvim_set_hl(0, "AlphaHeaderBG", { bg = "#ffffff" })

What shown (only the AlphaHeaderBG render)