diff --git a/README.md b/README.md
index 756a299..2c8517f 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,11 @@ Change foreground colors lightness. Only available for `zenbones-lush`.
 
 <img width="1080" alt="Dim lightness" src="https://user-images.githubusercontent.com/7200153/131272410-329636bb-fd8e-42fb-83aa-f436d211b5ed.png">
 
+#### g:zenbones_solid_vert_split
+
+Set to `v:true` to make vertical split more visible with a dimmer background
+highlight.
+
 ## Other plugins support
 
 Aside from LSP and basic Tree-sitter support, there are only a few plugins that
diff --git a/lua/zenbones/init.lua b/lua/zenbones/init.lua
index 6863860..fd41c54 100644
--- a/lua/zenbones/init.lua
+++ b/lua/zenbones/init.lua
@@ -18,6 +18,8 @@ elseif lightness ~= nil then
 	vim.api.nvim_echo({ { error_msg, "WarningMsg" } }, true, {})
 end
 
+local solid_vert_split = vim.g.zenbones_solid_vert_split
+
 -- stylua: ignore start
 return lush(function()
 	return {
@@ -96,7 +98,7 @@ return lush(function()
 		TabLine         { StatusLine, gui = "italic" }, -- tab pages line, not active tab page label
 		TabLineFill     { StatusLineNC }, -- tab pages line, where there are no labels
 		TabLineSel      { gui = "bold" }, -- tab pages line, active tab page label
-		VertSplit       { fg = PmenuThumb.bg }, -- the column separating vertically split windows
+		VertSplit       (solid_vert_split and { bg = StatusLineNC.bg, fg = LineNr.fg } or { fg = PmenuThumb.bg }), -- the column separating vertically split windows
 
 		Visual          { bg = c.stone.li(84) }, -- Visual mode selection
 		-- VisualNOS    { }, -- Visual mode selection when vim is "Not Owning the Selection".