feat: add support for transparent nvimtree

lua/catppuccin/config.lua

@@ -37,6 +37,7 @@ config.options = {
 		nvimtree = {
 			enabled = true,
 			show_root = false,
+			transparent_panel = false,
 		},
 		which_key = false,
 		indent_blankline = {

lua/catppuccin/core/integrations/nvimtree.lua

@@ -9,10 +9,11 @@ function M.get(cp)
 		root_dir_color = cp.blue
 	end
 
+
 	return {
 		NvimTreeFolderName = { fg = cp.blue },
 		NvimTreeFolderIcon = { fg = cp.blue },
-		NvimTreeNormal = { fg = cp.white, bg = cp.black1 },
+		NvimTreeNormal = { fg = cp.white, bg = cnf.transparent_panel and "NONE" or cp.black1 },
 		NvimTreeOpenedFolderName = { fg = cp.blue },
 		NvimTreeEmptyFolderName = { fg = cp.blue },
 		NvimTreeIndentMarker = { fg = cp.gray0 },