diff --git a/data/core/commands/core.lua b/data/core/commands/core.lua
index 52e9954..ac781c9 100644
--- a/data/core/commands/core.lua
+++ b/data/core/commands/core.lua
@@ -62,7 +62,7 @@ command.add(nil, {
 
   ["core:open-project-file"] = function()
     core.command_view:enter("Open Project File", function(text, item)
-      text = core.project_dir .. _PATHSEP .. (item and item.text or text)
+      text = core.project_dir .. PATHSEP .. (item and item.text or text)
       core.root_view:open_doc(core.open_doc(text))
     end, function(text)
       local files = {}
diff --git a/data/core/common.lua b/data/core/common.lua
index 925f6ae..f780480 100644
--- a/data/core/common.lua
+++ b/data/core/common.lua
@@ -91,7 +91,7 @@ function common.path_suggest(text)
     local info = system.get_file_info(file)
     if info then
       if info.type == "dir" then
-        file = file .. _PATHSEP
+        file = file .. PATHSEP
       end
       if file:lower():find(text:lower(), nil, true) == 1 then
         table.insert(res, file)
diff --git a/data/core/config.lua b/data/core/config.lua
index 01c954d..1c4c307 100644
--- a/data/core/config.lua
+++ b/data/core/config.lua
@@ -8,7 +8,7 @@ config.mouse_wheel_scroll = 50
 config.file_size_limit = 10
 config.symbol_pattern = "[%a_][%w_]*"
 config.non_word_chars = " \t\n/\\()\"':,.;<>~!@#$%^&*|+=[]{}`?-"
-config.treeview_size = 200 * _SCALE
+config.treeview_size = 200 * SCALE
 config.undo_merge_timeout = 0.3
 config.max_undos = 10000
 config.highlight_current_line = true
diff --git a/data/core/init.lua b/data/core/init.lua
index dcdfae0..ba2319b 100644
--- a/data/core/init.lua
+++ b/data/core/init.lua
@@ -32,7 +32,7 @@ local function project_scan_thread()
 
     for _, file in ipairs(all) do
       if not file:find("^%.") then
-        local file = path .. _PATHSEP .. file
+        local file = path .. PATHSEP .. file
         local info = system.get_file_info(file)
         if info and info.size < size_limit then
           table.insert(info.type == "dir" and dirs or files, file)
@@ -86,9 +86,9 @@ function core.init()
   core.project_files = {}
   core.project_dir = "."
 
-  local info = _ARGS[2] and system.get_file_info(_ARGS[2])
+  local info = ARGS[2] and system.get_file_info(ARGS[2])
   if info and info.type == "dir" then
-    core.project_dir = _ARGS[2]:gsub("[\\/]$", "")
+    core.project_dir = ARGS[2]:gsub("[\\/]$", "")
   end
 
   core.root_view = RootView()
@@ -104,8 +104,8 @@ function core.init()
   local got_plugin_error = not core.load_plugins()
   local got_user_error = not core.try(require, "user")
 
-  for i = 2, #_ARGS do
-    local filename = _ARGS[i]
+  for i = 2, #ARGS do
+    local filename = ARGS[i]
     local info = system.get_file_info(filename)
     if info and info.type == "file" then
       core.root_view:open_doc(core.open_doc(filename))
@@ -146,7 +146,7 @@ end
 
 function core.load_plugins()
   local no_errors = true
-  local files = system.list_dir(_EXEDIR .. "/data/plugins")
+  local files = system.list_dir(EXEDIR .. "/data/plugins")
   for _, filename in ipairs(files) do
     local modname = "plugins." .. filename:gsub(".lua$", "")
     local ok = core.try(require, modname)
@@ -405,7 +405,7 @@ end
 
 function core.on_error(err)
   -- write error to file
-  local fp = io.open(_EXEDIR .. "/error.txt", "wb")
+  local fp = io.open(EXEDIR .. "/error.txt", "wb")
   fp:write("Error: " .. tostring(err) .. "\n")
   fp:write(debug.traceback(nil, 4))
   fp:close()
diff --git a/data/core/style.lua b/data/core/style.lua
index ddb351d..bbb1258 100644
--- a/data/core/style.lua
+++ b/data/core/style.lua
@@ -1,16 +1,16 @@
 local common = require "core.common"
 local style = {}
 
-style.padding = { x = common.round(14 * _SCALE), y = common.round(7 * _SCALE) }
-style.divider_size = common.round(1 * _SCALE)
-style.scrollbar_size = common.round(4 * _SCALE)
-style.caret_width = common.round(2 * _SCALE)
-style.tab_width = common.round(170 * _SCALE)
+style.padding = { x = common.round(14 * SCALE), y = common.round(7 * SCALE) }
+style.divider_size = common.round(1 * SCALE)
+style.scrollbar_size = common.round(4 * SCALE)
+style.caret_width = common.round(2 * SCALE)
+style.tab_width = common.round(170 * SCALE)
 
-style.font = renderer.font.load(_EXEDIR .. "/data/fonts/font.ttf", 14 * _SCALE)
-style.big_font = renderer.font.load(_EXEDIR .. "/data/fonts/font.ttf", 34 * _SCALE)
-style.icon_font = renderer.font.load(_EXEDIR .. "/data/fonts/icons.ttf", 14 * _SCALE)
-style.code_font = renderer.font.load(_EXEDIR .. "/data/fonts/monospace.ttf", 13.5 * _SCALE)
+style.font = renderer.font.load(EXEDIR .. "/data/fonts/font.ttf", 14 * SCALE)
+style.big_font = renderer.font.load(EXEDIR .. "/data/fonts/font.ttf", 34 * SCALE)
+style.icon_font = renderer.font.load(EXEDIR .. "/data/fonts/icons.ttf", 14 * SCALE)
+style.code_font = renderer.font.load(EXEDIR .. "/data/fonts/monospace.ttf", 13.5 * SCALE)
 
 style.background = { common.color "#1F1F2B" }
 style.background2 = { common.color "#181821" }
diff --git a/src/main.c b/src/main.c
index 570e76c..b2f6356 100644
--- a/src/main.c
+++ b/src/main.c
@@ -88,27 +88,30 @@ int main(int argc, char **argv) {
     lua_pushstring(L, argv[i]);
     lua_rawseti(L, -2, i + 1);
   }
-  lua_setglobal(L, "_ARGS");
+  lua_setglobal(L, "ARGS");
+
+  lua_pushstring(L, "1.01");
+  lua_setglobal(L, "VERSION");
 
   lua_pushstring(L, SDL_GetPlatform());
-  lua_setglobal(L, "_PLATFORM");
+  lua_setglobal(L, "PLATFORM");
 
   lua_pushnumber(L, get_scale());
-  lua_setglobal(L, "_SCALE");
+  lua_setglobal(L, "SCALE");
 
   char exedir[2048];
   get_exe_dir(exedir, sizeof(exedir));
   lua_pushstring(L, exedir);
-  lua_setglobal(L, "_EXEDIR");
+  lua_setglobal(L, "EXEDIR");
 
 
   (void) luaL_dostring(L,
     "local core\n"
     "xpcall(function()\n"
-    "  _SCALE = tonumber(os.getenv(\"LITE_SCALE\")) or _SCALE\n"
-    "  _PATHSEP = package.config:sub(1, 1)\n"
-    "  package.path = _EXEDIR .. '/data/?.lua;' .. package.path\n"
-    "  package.path = _EXEDIR .. '/data/?/init.lua;' .. package.path\n"
+    "  SCALE = tonumber(os.getenv(\"LITE_SCALE\")) or SCALE\n"
+    "  PATHSEP = package.config:sub(1, 1)\n"
+    "  package.path = EXEDIR .. '/data/?.lua;' .. package.path\n"
+    "  package.path = EXEDIR .. '/data/?/init.lua;' .. package.path\n"
     "  core = require('core')\n"
     "  core.init()\n"
     "  core.run()\n"