Highlight group BlinkCmpMenuSelection cleared when switching colorscheme

[eshom]

This has been bothering me for a while and I'm quite lost.

My config: https://github.com/eshom/kickstart.nvim
nvim 0.11.4

Relevant plugins for this question:

• blink.cmp
• bamboo (colorscheme)
• cyberdream (colorscheme)

In my init.lua I set the default colorscheme to 'cyberdream'
It works fine, but sometimes I like changing themes while coding.

When I change the colorscheme to 'bamboo' for example, BlinkCmpMenuSelection highlight group becomes cleared, which means I'm not able to see what I'm selecting in the completion menu.

The odd thing is if I set the default to 'bamboo', I don't have this problem. BlinkCmpMenuSelection links to PMenuSel. Switching colorschemes back and forth to anything doesn't clear BlinkCmpMenuSelection.

What am I doing wrong? How to fix this? How to work around without this if it's an issue I cannot resolve in configuration?

Thank you!

[drowning-cat]

1. Why did you create a Neovim discussion specifically? At least you didn’t post it in the Neovim issues.

2. Provide a minimal reproducible example:

   For boomers

   -- nvim -u repro.lua repro.lua
   -- Initial theme is "cyberdream"
   -- :colors <theme> (press 2)
   -- No selection in blink.cmp menu
   
   vim.env.LAZY_STDPATH = ".repro"
   load(vim.fn.system("curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua"))()
   
   vim.keymap.set("n", "1", ":colorscheme cyberdream<CR>")
   vim.keymap.set("n", "2", ":colorscheme bamboo<CR>")
   
   vim.schedule(function()
     vim.cmd.colorscheme("cyberdream")
   end)
   
   -- Replace `vim.schedule` above with:
   -- vim.defer_fn(function()
   --   vim.cmd.colorscheme("cyberdream")
   -- end, 200)
   
   ---@diagnostic disable-next-line: missing-fields
   require("lazy.minit").repro({
     spec = {
       {
         "scottmckendry/cyberdream.nvim",
         priority = 1000,
       },
       {
         "ribru17/bamboo.nvim",
         priority = 1000,
       },
       {
         "saghen/blink.cmp",
         -- version = "*",
         build = "cargo build --release",
         opts = {},
       },
       {
         "mason-org/mason.nvim",
         build = ":MasonUpdate",
         opts = {},
       },
       {
         "mason-org/mason-lspconfig.nvim",
         dependencies = { "mason-org/mason.nvim", "neovim/nvim-lspconfig" },
         opts = {
           ensure_installed = { "lua_ls" },
         },
       },
     },
   })

   For zoomers

   -- nvim -u repro.lua repro.lua
   -- Initial theme "cyberdream"
   -- :colors <theme> (press 2)
   -- No selection in blink.cmp menu
   
   -- repro.lua
   
   vim.keymap.set("n", "1", ":colorscheme cyberdream<CR>")
   vim.keymap.set("n", "2", ":colorscheme bamboo<CR>")
   vim.keymap.set("n", "3", ":colorscheme tokyonight<CR>")
   
   vim.keymap.set("n", "h", ":highlight BlinkCmpMenuSelection<CR>")
   
   vim.pack.add({
     { src = "https://github.com/scottmckendry/cyberdream.nvim" },
     { src = "https://github.com/ribru17/bamboo.nvim" },
     { src = "https://github.com/folke/tokyonight.nvim" },
     { src = "https://github.com/saghen/blink.cmp" },
     { src = "https://github.com/mason-org/mason.nvim" },
     { src = "https://github.com/neovim/nvim-lspconfig" },
     { src = "https://github.com/mason-org/mason-lspconfig.nvim" },
   })
   
   require("blink.cmp").setup()
   require("mason").setup()
   vim.cmd("MasonUpdate")
   require("mason-lspconfig").setup({ ensure_installed = { "lua_ls" } })
   
   -- NOTE: Deferred execution fixes the problem
   -- vim.defer_fn(function()
   -- end, 500)
   
   vim.cmd.colorscheme("cyberdream")
   
   -- NOTE: Defining `hl-BlinkCmpMenuSelection` makes the selection invisible after changing the colorscheme
   -- NOTE: Replace `vim.cmd.colorscheme("cyberdream")` with
   -- vim.cmd("hi BlinkCmpMenuSelection guifg=red guibg=green")

[drowning-cat]

I have no idea why, but it seems initial loading of cyberdream theme causes the problem. To be specific cyberdream is the only theme that explicitly sets BlinkCmpMenuSelection.

[drowning-cat]

By the way, this fixes the issue:

require("cyberdream").setup({
  highlights = {
    BlinkCmpMenuSelection = {},
  },
})

Note

So the problem is with defining the BlinkCmpMenuSelection highlight. You can use this code instead of setting up the cyberdream colorscheme to reproduce the issue:

vim.cmd("hi BlinkCmpMenuSelection guifg=red guibg=green")

[eshom]

Thank you for the answer and detailed repro details! I wasn't really trying to report a bug in this discussion (hence the Q&A thread), but I appreciate the information nevertheless. Anyway, I'll check blink.cmp repo to see if anyone reported something similar to this.

For your question, I created the discussion specifically, because neovim's homepage redirects here as an option for configuration questions:

• Ask usage and configuration questions at GitHub Discussions or vi.stackexchange.com.

[drowning-cat]

Yes, but the issue is clearly related to the blink.cmp plugin, so it would make more sense to ask in that repository (although the problem may not be caused by the plugin). Just imagine if everyone asked questions about all plugins here — the discussions would quickly become unmanageable. Don’t get me wrong, you can ask wherever you like, but you’ll probably be ignored here since this isn’t really about vanilla Neovim. Moreover, I also check blink.cmp discussions from time to time.