feat: Allow customizing hl_group used on WindowPicker

- Default WindowPicker hl_group to StatusLineNC
- Introduce `window_picker_hl_group` option to specify custom hl_group to be used

Author: ruicsh

README.md

@@ -41,6 +41,7 @@ use 'sindrets/winshift.nvim'
 require("winshift").setup({
   highlight_moving_win = true,  -- Highlight the window being moved
   focused_hl_group = "Visual",  -- The highlight group used for the moving window
+  window_picker_hl_group = "StatusLineNC"  -- The highlight group used for the target windows
   moving_win_options = {
     -- These are local options applied to the moving window while it's
     -- being moved. They are unset when you leave Win-Move mode.

lua/winshift/colors.lua

@@ -171,14 +171,16 @@ function M.get_hl_groups()
     or (M.get_bg({ hl_focused, "Normal" }) or "white")
   local fg_focused = reverse and (M.get_bg({ hl_focused, "Normal" }) or "black") or nil
 
+  local hl_window_picker = config.get_config().window_picker_hl_group
+
   return {
     Normal = { fg = fg_focused, bg = bg_focused },
     EndOfBuffer = { fg = bg_focused, bg = bg_focused },
     LineNr = { fg = M.get_fg("LineNr"), bg = bg_focused, gui = M.get_gui("LineNr") },
     CursorLineNr = { fg = M.get_fg("CursorLineNr"), bg = bg_focused, gui = M.get_gui("CursorLineNr") },
     SignColumn = { fg = M.get_fg("SignColumn"), bg = bg_focused },
     FoldColumn = { fg = M.get_fg("FoldColumn"), bg = bg_focused },
-    WindowPicker = { fg = "#ededed", bg = "#4493c8", ctermfg = 255, ctermbg = 33, gui = "bold" },
+    WindowPicker = { fg = M.get_fg(hl_window_picker), bg = M.get_bg(hl_window_picker), gui = M.get_gui(hl_window_picker) },
   }
 end
 

lua/winshift/config.lua

@@ -5,6 +5,7 @@ local M = {}
 M.defaults = {
   highlight_moving_win = true,
   focused_hl_group = "Visual",
+  window_picker_hl_group = "StatusLineNC",
   moving_win_options = {
     wrap = false,
     cursorline = false,