fix: define NormalFloat

[roosta]

Neovim version 0.10 unlinked NormalFloat with pmenu, which caused the popup background color to default to undefined (black/magenta etc depending on what the default colorscheme is)

Should fix the issue reported by @milogert on discord, and return the previous colors

Ref: #119, #111, #116

[MindTooth]

With my test function, I now have:

It's now very bright. Was that the case before?

---

Function:

function! BreakHabitsWindow() abort
    " Define the size of the floating window
    let width = 50
    let height = 10

    " Create the scratch buffer displayed in the floating window
    let buf = nvim_create_buf(v:false, v:true)

    " Get the current UI
    let ui = nvim_list_uis()[0]

    " Create the floating window
    let opts = {'relative': 'editor',
                \ 'width': width,
                \ 'height': height,
                \ 'col': (ui.width/2) - (width/2),
                \ 'row': (ui.height/2) - (height/2),
                \ 'anchor': 'NW',
                \ 'style': 'minimal',
                \ }
    let win = nvim_open_win(buf, 1, opts)

    " create the lines to draw a box
    let horizontal_border = '+' . repeat('-', width - 2) . '+'
    let empty_line = '|' . repeat(' ', width - 2) . '|'
    let lines = flatten([horizontal_border, map(range(height-2), 'empty_line'), horizontal_border])

    " set the box in the buffer
    call nvim_buf_set_lines(buf, 0, -1, v:false, lines)
endfunction

[roosta]

yeah, that's what it was before 0.10. I tried to change the contrast in #111, but there was unforeseen issues so I reverted back.

Problem is I don't use any popups, most of my plugins and whatnot are compatible with vanilla vim, so I don't catch issues sometimes.

[roosta]

I reverted neovim back to 0.9.5, and opened a :LspInfo popup, and took a screenshot. It's xgray2

[MindTooth]

Let's go with it for now to solve it temporarily. You okay with that?

[milogert]

This looks great locally!

[milogert]

Any thoughts about adding something like

call s:HL('CurSearch', s:none, s:bright_yellow)

to the PR? It fixes a highlight that is currently some sort of bright yellow color that's defaulted to NvimLightYellow (screenshot below)

[roosta]

Gonna rebase this, the issue you mention @milogert need some further inspection, not quite sure why its yellow in the first place.