diff --git a/.editorconfig b/.editorconfig
new file mode 100755
index 0000000..b58478e
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,9 @@
+[*]
+end_of_line = lf
+
+[*.{lua,spec}]
+charset = utf8
+indent_size = 4
+indent_style = tab
+insert_final_newline = true
+trim_trailing_whitespace = true
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..eba1110
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+# Auto detect text files and perform LF normalization
+* text=auto
\ No newline at end of file
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..b955d14
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,25 @@
+name: luacheck
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  workflow_dispatch:
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE
+      - uses: actions/checkout@v2
+      - name: luacheck
+        uses: nebularg/actions-luacheck@v1.1.0
+        #with:
+          #files: # optional, default is .
+          #path: # optional, default is ${{ github.workspace }}
+          #args: # optional
+          #config: # optional
+          #annotate: # optional, default is none
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b683fc0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.mods/formspec_edit/formspec.spec
\ No newline at end of file
diff --git a/.luacheckrc b/.luacheckrc
new file mode 100644
index 0000000..0ae26d3
--- /dev/null
+++ b/.luacheckrc
@@ -0,0 +1,47 @@
+max_line_length = false
+
+read_globals = {
+    "DIR_DELIM", "INIT",
+
+    "minetest", "core",
+    "dump", "dump2",
+
+    "Raycast",
+    "Settings",
+    "PseudoRandom",
+    "PerlinNoise",
+    "VoxelManip",
+    "SecureRandom",
+    "VoxelArea",
+    "PerlinNoiseMap",
+    "PcgRandom",
+    "ItemStack",
+    "AreaStore",
+
+    "vector",
+
+    table = {
+        fields = {
+            "copy",
+            "indexof",
+            "insert_all",
+            "key_value_swap",
+            "shuffle",
+        }
+    },
+
+    string = {
+        fields = {
+            "split",
+            "trim",
+        }
+    },
+
+    math = {
+        fields = {
+            "hypot",
+            "sign",
+            "factorial"
+        }
+    },
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index b1fd341..74c209d 100644
--- a/README.md
+++ b/README.md
@@ -5,17 +5,21 @@
 
 ## Getting Started 
 
+This mod needs access to an insecure environment in order to work.
+
+Add `formspec_edit` to `secure.trusted_mods` in your `minetest.conf` file.
+
 The file *formspec.spec* in your:
 
 ```minetest_folder/games/formspec_editor/mods/formspec_edit```
 
-contains a formspec you can edit and see updates of in real time.
-Simply add the game to MT, add ```formspec_edit``` to your ```secure.trusted_mods``` settings,
-load up a level of *Formspec Editor*, and you will be greeted with the *formspec.spec* formspec. 
+contains a formspec you can edit and see updates of in real time. (You can also specify a file location with the `formspec_editor.file_path` setting.)
+Simply add the game to MT, load up a level of *Formspec Editor*, and you will be greeted with the formspec. 
 
-- To make edits, open the file (formspec.spec) in your editor of choice and make changes as you see fit. When you hit save, the formspec will auto-update. Best when used side by side. 
+- To make edits, open the file in your editor of choice and make changes as you see fit. When you hit save, the formspec will auto-update. Best when used side by side. 
 - To exit just hit <escape> or use a button_exit[] button. Both send the
 fields.quit message.
 - You can test with images if you want, adding a "textures" folder to the 
 formspec_edit gamemod folder, otherwise images will default to random colors.
-
+- You can show the formspec with builtin, minetest_game or mineclone2 styling (see the `formspec_editor.style` setting)
+- You can change the refresh rate by changing the `formspec_editor.update_time` setting
diff --git a/mods/formspec_edit/init.lua b/mods/formspec_edit/init.lua
index 484acd5..7467797 100644
--- a/mods/formspec_edit/init.lua
+++ b/mods/formspec_edit/init.lua
@@ -9,111 +9,165 @@ minetest.register_alias("mapgen_water_source", "air")
 
 --Variables
 local modpath = minetest.get_modpath("formspec_edit")
+
 local insecure_env = minetest.request_insecure_environment()
-local auto_update_time = 0.2 --seconds
+if not insecure_env then
+	error("[formspec_editor] Cannot access insecure environment!")
+end
+
+local io = insecure_env.io
+local update_time = tonumber(minetest.settings:get("formspec_editor.update_time")) or 0.2
+
+--Load provided file if present
+local filepath = minetest.settings:get("formspec_editor.file_path")
+if not filepath or filepath == "" then
+	filepath = modpath .. "/formspec.spec"
+end
+
+--Get styling presets
+local styling = minetest.settings:get("formspec_editor.style")
+if not styling or styling == "" then
+	styling = "builtin"
+end
+
 local error_formspec = [[
 formspec_version[4]
 size[8,2]
-position[0.5,0.5]
 label[0.375,0.5;Error:formspec.spec is either ]
 label[0.375,1;non-existent,or empty]
 ]]
 
---function declarations
-local update_formspec = nil
-local load_formspec = nil
-local auto_update = nil
-local turn_off_hud = nil
+--Crash if not singleplayer
+--TODO: hide the 'Host server' checkbox in main menu then possible
+if not minetest.is_singleplayer() then
+	error("[formspec_editor] This game doesn't work in multiplayer!")
+end
+
+--function definitions
+
+-----------------------------------
+--load_formspec()
+-----------------------------------
+local function load_formspec()
+	local file = io.open(filepath, "rb")
+	if file == nil then
+		return error_formspec
+	else
+		local content = file:read("*all")
+		file:close()
+		if content == nil then
+			return error_formspec
+		else
+			return content
+		end
+	end
+end
+
+-----------------------------------
+--update_formspec()
+-----------------------------------
+local function update_formspec(player_name)
+	minetest.after(0.1, function(name)
+		minetest.show_formspec(name, "fs", load_formspec())
+	end, player_name)
+end
+
+-----------------------------------
+--apply_styling()
+-----------------------------------
+local function apply_styling(player_ref)
+	local prepend = ""
+	if styling == "minetest_game" then
+		------------------------------------------------
+		---------------Minetest Game code---------------
+		------------------------------------------------
+		prepend = [[
+			bgcolor[#080808BB;true]
+			listcolors[#00000069;#5A5A5A;#141318;#30434C;#FFF]
+		]]
+		local name = player_ref:get_player_name()
+		local info = minetest.get_player_information(name)
+		if info.formspec_version > 1 then
+			prepend = prepend .. "background9[5,5;1,1;mtg_gui_formbg.png;true;10]"
+		else
+			prepend = prepend .. "background[5,5;1,1;mtg_gui_formbg.png;true]"
+		end
+	elseif styling == "mineclone2" then
+		------------------------------------------------
+		---------------MineClone2 code------------------
+		------------------------------------------------
+		--Sadly, this code doesn't support inventory slot styling (texture based)
+		prepend = "listcolors[#9990;#FFF7;#FFF0;#000;#FFF]"..
+			"style_type[image_button;border=false;bgimg=mcl_inventory_button9.png;bgimg_pressed=mcl_inventory_button9_pressed.png;bgimg_middle=2,2]"..
+			"style_type[button;border=false;bgimg=mcl_inventory_button9.png;bgimg_pressed=mcl_inventory_button9_pressed.png;bgimg_middle=2,2]"..
+			"style_type[field;textcolor=#323232]"..
+			"style_type[label;textcolor=#323232]"..
+			"style_type[textarea;textcolor=#323232]"..
+			"style_type[checkbox;textcolor=#323232]"..
+			"bgcolor[#00000000]"..
+			"background9[1,1;1,1;mcl_base_textures_background9.png;true;7]"
+	end
+	player_ref:set_formspec_prepend(prepend)
+end
+
+-----------------------------------
+--turn_off_hud()
+-----------------------------------
+local function turn_off_hud(player_ref)
+	player_ref:hud_set_flags({
+		hotbar = false,
+		healthbar = false,
+		crosshair = false,
+		wielditem = false,
+		breathbar = false,
+		minimap = false,
+		minimap_radar = false,
+	})
+end
+
+-----------------------------------
+--set_sky()
+-----------------------------------
+local function set_sky(player_ref)
+	player_ref:set_sky({
+		base_color = "#AAF",
+		type = "plain",
+		clouds = false,
+	})
+	player_ref:set_stars({visible = false})
+    player_ref:set_sun({visible = false})
+    player_ref:set_moon({visible = false})
+	player_ref:override_day_night_ratio(0)
+end
 
 --Registrations
 
 -----------------------------------
 --on_joinplayer()
 -----------------------------------
-minetest.register_on_joinplayer(
-function(player_ref,_)
-    auto_update(player_ref:get_player_name())
-    turn_off_hud(player_ref)
-    set_sky(player_ref)
-end
-)
+minetest.register_on_joinplayer(function(player_ref,_)
+	apply_styling(player_ref)
+	turn_off_hud(player_ref)
+	set_sky(player_ref)
+end)
 -----------------------------------
 --on_player_receive_fields()
 -----------------------------------
-minetest.register_on_player_receive_fields(
-function(player_ref, _, fields)
-    if(fields.quit) then
-        minetest.request_shutdown()
-    end
-    update_formspec(player_ref:get_player_name())
-end
-)
+minetest.register_on_player_receive_fields(function(player_ref, _, fields)
+	if fields.quit then
+		minetest.request_shutdown()
+	end
+	update_formspec(player_ref:get_player_name())
+end)
 
---function definitions
-
------------------------------------
---auto_update()
------------------------------------
-auto_update = function(player_name)
-    update_formspec(player_name)
-    minetest.after(auto_update_time,auto_update,player_name)
-end
-
------------------------------------
---update_formspec()
------------------------------------
-update_formspec = function(player_name)
-    minetest.after(0.1,
-        function(player_name)
-            minetest.show_formspec(player_name, "fs", load_formspec())
-        end,
-        player_name)
-end
-
------------------------------------
---load_formspec()
------------------------------------
-load_formspec = function()
-    local io = insecure_env.io
-    local file = io.open(modpath .. "/formspec.spec", "rb")
-    if file == nil then
-        return error_formspec
-    else
-        local content = file:read("*all")
-        file:close()
-        if content == nil then
-            return error_formspec
-        else
-            return content
-        end
-    end
-end
-
------------------------------------
---turn_off_hud()
------------------------------------
-turn_off_hud = function(player_ref)
-    local flags = {
-        hotbar = false,
-        healthbar = false,
-        crosshair = false,
-        wielditem = false,
-        breathbar = false,
-        minimap = false,
-        minimap_radar = false,
-    }
-    player_ref:hud_set_flags(flags)
-end
-
------------------------------------
---set_sky()
------------------------------------
-set_sky = function(player_ref)
-    local sky = {
-        base_color = "#AAF",
-        type = "plain",
-        clouds = false,
-    }
-    player_ref:set_sky(sky)
-    player_ref:override_day_night_ratio(0)
-end
\ No newline at end of file
+local time = 0
+minetest.register_globalstep(function(dtime)
+	time = time + dtime
+	if time >= update_time then
+		local player = minetest.get_connected_players()[1] --The game isn't supposed to work in multiplayer
+		if player then
+			update_formspec(player:get_player_name())
+		end
+		time = 0
+	end
+end)
diff --git a/mods/formspec_edit/textures/CREDITS.md b/mods/formspec_edit/textures/CREDITS.md
new file mode 100644
index 0000000..15fba50
--- /dev/null
+++ b/mods/formspec_edit/textures/CREDITS.md
@@ -0,0 +1,9 @@
+These textures are copied from Minetest Game and MineClone2 projects
+
+# Minetest Game (CC BY-SA 3.0)
+mtg_gui_formbg.png
+
+# MineClone2 (CC BY-SA 3.0)
+mcl_inventory_button9.png
+mcl_inventory_button9_pressed.png
+mcl_base_textures_background9.png
\ No newline at end of file
diff --git a/mods/formspec_edit/textures/mcl2/mcl_base_textures_background9.png b/mods/formspec_edit/textures/mcl2/mcl_base_textures_background9.png
new file mode 100644
index 0000000..e5d693e
Binary files /dev/null and b/mods/formspec_edit/textures/mcl2/mcl_base_textures_background9.png differ
diff --git a/mods/formspec_edit/textures/mcl2/mcl_inventory_button9.png b/mods/formspec_edit/textures/mcl2/mcl_inventory_button9.png
new file mode 100644
index 0000000..aab1601
Binary files /dev/null and b/mods/formspec_edit/textures/mcl2/mcl_inventory_button9.png differ
diff --git a/mods/formspec_edit/textures/mcl2/mcl_inventory_button9_pressed.png b/mods/formspec_edit/textures/mcl2/mcl_inventory_button9_pressed.png
new file mode 100644
index 0000000..aeaea13
Binary files /dev/null and b/mods/formspec_edit/textures/mcl2/mcl_inventory_button9_pressed.png differ
diff --git a/mods/formspec_edit/textures/mtg/mtg_gui_formbg.png b/mods/formspec_edit/textures/mtg/mtg_gui_formbg.png
new file mode 100644
index 0000000..e259fec
Binary files /dev/null and b/mods/formspec_edit/textures/mtg/mtg_gui_formbg.png differ
diff --git a/settingtypes.txt b/settingtypes.txt
new file mode 100644
index 0000000..fe15730
--- /dev/null
+++ b/settingtypes.txt
@@ -0,0 +1,8 @@
+#    Formspec update time (in seconds)
+formspec_editor.update_time (Update time) float 0.2
+
+#    Path of the formspec file
+formspec_editor.file_path (File path) filepath
+
+#    Style type
+formspec_editor.style (Formspec style) enum builtin builtin,minetest_game,mineclone2
\ No newline at end of file