make lsp related popups all look the same

after/plugin/cmp.lua

@@ -30,11 +30,11 @@ cmp.setup {
   window = {
     completion = {
       scrollbar = false,
-      border = { ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' },
+      border = 'solid',
       winhighlight = "Normal:WinBarNC,FloatBorder:WinBarNC,Search:WinBarNC",
     },
     documentation = {
-      border = { ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' },
+      border = 'solid',
       winhighlight = "Normal:WinBarNC,FloatBorder:WinBarNC,Search:WinBarNC",
     }
   },

after/plugin/lsp.lua

@@ -57,10 +57,15 @@ vim.diagnostic.config({
   severity_sort = true,
 })
 
-vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(vim.lsp.handlers.hover,
-  { border = 'shadow', })
+vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(
+  vim.lsp.handlers.hover, {
+    border = 'solid',
+  })
+
 vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(
-  vim.lsp.handlers.signature_help, { border = 'shadow' })
+  vim.lsp.handlers.signature_help, {
+    border = 'solid',
+  })
 
 -- get servers and attach to them
 local status_ok1, mason = pcall(require, "mason")

colors/mellow.ext.lua

@@ -53,6 +53,9 @@ highlight('EndOfBuffer', { fg = vim.g.terminal_color_background })
 -- make all backgrounds the same color
 highlight('NormalNC', cpyhl('Normal'))
 
+highlight('NormalFloat', { bg = c.bg_dark })
+highlight('FloatBorder', cpyhl('NormalFloat'))
+
 -- plugin highlights ----------------------------------------------------------
 -- telescope
 highlight('TelescopeMatching', { fg = c.yellow })