Background transitions from dark to light during startup

[bgonzales]

I noticed that when opening nvim a dark screen is flashed in less than a second, specially noticeable when the window has a light theme, so I recorded a video slowing down the moment a file is opened and I could see that the nvim's background transitions from dark to light, here I'm using Tokyo Night colorscheme:

Background-transition.mp4

From nvim docs the background defaults to dark so this might make sense but I was wondering is there something I'm doing wrong? 🤔 I even disabled all my plugins and leave only the theme configuration (like below) with the same result or maybe is this the expected behavior?

{
    "folke/tokyonight.nvim",
    lazy = false,
    priority = 1000,
    config = function()
        vim.cmd([[colorscheme tokyonight]])
    end,
},

I'm pretty sure I'm not doing anything related to colorscheme or background before Lazy loads all plugins and I saw the same using other colorschemes that support dark variation.

[folke]

Nothing to do about that. That's Neovim's detection of the terminal dark/light kicking in later

[bgonzales]

That makes sense, thanks @folke