From 721ef79edafa201869a7a965fc72115535cad65a Mon Sep 17 00:00:00 2001
From: Abdulrahman Sheikho <abdulrahman.j.sheikho@gmail.com>
Date: Wed, 11 Mar 2026 00:33:15 +0300
Subject: [PATCH] setup: add ui config with transparent bg

This commit also setup highlight for EOF-char & Window-Separator to
match the highlight on Cursor-Line-Number. And sets auto-command
to reset colors after changing the colorscheme.
---
 lua/core/autocommands.lua |  9 +++++++++
 lua/core/init.lua         |  1 +
 lua/core/ui.lua           | 10 ++++++++++
 3 files changed, 20 insertions(+)
 create mode 100644 lua/core/ui.lua

diff --git a/lua/core/autocommands.lua b/lua/core/autocommands.lua
index 4b8d1d58..f6372b81 100644
--- a/lua/core/autocommands.lua
+++ b/lua/core/autocommands.lua
@@ -11,3 +11,12 @@ vim.api.nvim_create_autocmd('TextYankPost', {
     vim.hl.on_yank()
   end,
 })
+
+vim.api.nvim_create_autocmd('ColorScheme', {
+  desc = 'Reset colors for some elemnts after changeing the colorscheme.',
+  group = vim.api.nvim_create_augroup('ElementsColorReset', { clear = true }),
+  callback = function()
+    vim.api.nvim_set_hl(0, 'WinSeparator', vim.api.nvim_get_hl(0, { name = 'CursorLineNr' }))
+    vim.api.nvim_set_hl(0, 'EndOfBuffer', vim.api.nvim_get_hl(0, { name = 'CursorLineNr' }))
+  end,
+})
diff --git a/lua/core/init.lua b/lua/core/init.lua
index 845a6e42..0a0e2dcf 100644
--- a/lua/core/init.lua
+++ b/lua/core/init.lua
@@ -4,3 +4,4 @@ require 'core.keymaps'
 require 'core.diagnostics'
 require 'core.autocommands'
 require 'core.lazy-nvim'
+require 'core.ui'
diff --git a/lua/core/ui.lua b/lua/core/ui.lua
new file mode 100644
index 00000000..607e2927
--- /dev/null
+++ b/lua/core/ui.lua
@@ -0,0 +1,10 @@
+-- [[ UI Configs ]]
+-- set transparency
+vim.api.nvim_set_hl(0, 'Normal', { bg = 'none', ctermbg = 'none' })
+vim.api.nvim_set_hl(0, 'NonText', { bg = 'none', ctermbg = 'none' })
+vim.api.nvim_set_hl(0, 'SignColumn', { bg = 'none', ctermbg = 'none' })
+vim.api.nvim_set_hl(0, 'FoldColumn', { bg = 'none', ctermbg = 'none' })
+
+-- set WinSeparator & EndOfBuffer to match the highlight on cursor-line-number
+vim.api.nvim_set_hl(0, 'WinSeparator', vim.api.nvim_get_hl(0, { name = 'CursorLineNr' }))
+vim.api.nvim_set_hl(0, 'EndOfBuffer', vim.api.nvim_get_hl(0, { name = 'CursorLineNr' }))