vis: set dark or light theme and start and also add key for this action

vis/.config/vis/visrc.lua

@@ -146,6 +146,19 @@ local function add_global_mark()
 	end
 end
 
+function set_current_theme()
+	local f = io.open(os.getenv('HOME') .. '/.config/xsettingsd/xsettingsd.conf')
+	if f then
+		local s = f:read('*all')
+		f:close()
+		if s:match('light') then
+			vis:command('set theme lupan-light')
+		else
+			vis:command('set theme lupan-dark')
+		end
+	end
+end
+
 local ripgrep = 'rg --column --line-number --color=always --smart-case'
 
 vis.events.subscribe(vis.events.INIT, function()
@@ -301,6 +314,9 @@ vis.events.subscribe(vis.events.INIT, function()
 	vis:map(vis.modes.NORMAL, ' tl', function()
 		vis:command('set theme lupan-light')
 	end, 'change to light theme')
+	vis:map(vis.modes.NORMAL, ' tt', set_current_theme)
+
+	set_current_theme()
 end)
 
 vis.events.subscribe(vis.events.WIN_OPEN, function(win)