🚑 Fix warna API about background color

Author: Freed-Wu

README.md

@@ -93,18 +93,18 @@ end
 
 #### [luatex](https://www.luatex.org/)
 
-See [texluap](https://luarocks.org/modules/freed-wu/texluap).
-
-#### [neomutt](https://neomutt.org)
-
-Broken in [upstream](https://github.com/neomutt/neomutt/issues/4328)
+See [texluap](https://texrocks.readthedocs.io/en/latest/topics/texluap.md.html).
 
 ### Lua 5.4
 
 #### [pandoc](https://pandoc.org)
 
 ![pandocp](https://github.com/wakatime/prompt-style.lua/assets/32936898/b556effe-6be7-4cf9-b612-b1283d6de721)
 
+#### [neomutt](https://neomutt.org)
+
+![neomuttp](https://github.com/user-attachments/assets/987820e6-cdb4-4a2b-a190-5ab16c4449b7)
+
 ## Install
 
 ### [AUR](https://aur.archlinux.org/packages/lua-prompt-style)

lua/prompt/style.lua

@@ -1,13 +1,7 @@
 ---prompt style.
 local os = require "os"
 local table = require "table"
--- texlua has a builtin lfs, use it
-if lfs then
-    lfs_ = lfs
-else
-    _, lfs_ = pcall(require, "lfs")
-end
-local lfs = lfs_
+local lfs = require"lfs"
 local warna = require "warna"
 warna.options.level = 3
 local ansicolors = warna.format
@@ -248,9 +242,9 @@ local function generate_ps1(char, sections)
                 if text ~= "" then
                     text = format:format(text)
                     if last_bg == "" then
-                        ps1 = ps1 .. "%{" .. fg .. " " .. bg .. "bg}" .. text
+                        ps1 = ps1 .. "%{" .. fg .. " bg-" .. bg .. "}" .. text
                     else
-                        ps1 = ps1 .. "%{" .. last_bg .. " " .. bg .. "bg}" .. sep ..
+                        ps1 = ps1 .. "%{" .. last_bg .. " bg-" .. bg .. "}" .. sep ..
                             "%{" .. fg .. "}" .. text
                     end
                     last_bg = bg