diff --git a/main.py b/main.py
index 7b24c56..bcac173 100644
--- a/main.py
+++ b/main.py
@@ -18,6 +18,7 @@ from cfg import *
 from cld import *
 from ctx import *
 from fs import *
+from desktop import *
 from desktop_Platform import *
 from desktop_Window import *
 from ht_Context import *
@@ -42,18 +43,12 @@ def process(c):
   p.c = c
   # Perform context dependent calls of desktop functions.
   # Similar to context functions, but no platform is returned.
-  ### desktop_deselectMismatchedTiles(p)
+  desktop_applyConfigInit(p)
 ctrl.registerCallback(process)
 
 ctrl.set("cfgPath", CFG)
 ctrl.set("scriptDir", SCRIPT_DIR)
 
-ctrl.set("windowWidth", 900)
-ctrl.set("windowHeight", 600)
-ctrl.set("windowAntialiasing", False)
-ctrl.set("windowBackgroundColor", "#ffffff")
-ctrl.set("windowTitle", "Прототип: Отель")
-
 #desktop_loadTextures(p)
 
 wnd = desktop_Window(p)
diff --git a/py/desktop.py b/py/desktop.py
new file mode 100644
index 0000000..5db1a18
--- /dev/null
+++ b/py/desktop.py
@@ -0,0 +1,30 @@
+import arcade
+from cld import *
+from desktop_Platform import *
+
+# Pass config init key-value pairs to context controller
+#
+# Conditions:
+# 1. Config tree has just been parsed
+def desktop_applyConfigInit(p):
+    if (
+        p.c.recentField == "cfgTree"
+    ):
+        for key in p.c.cfgTree["init"]:
+            value = p.c.cfgTree["init"][key]
+            # Boolean.
+            if (
+                value == "false"
+            ):
+                value = False
+            elif (
+                value == "true"
+            ):
+                value = True
+            # Float.
+            elif (
+                cld_isdigit(value)
+            ):
+                value = float(value)
+
+            p.ctrl.set(key, value)
diff --git a/py/desktop_Platform.py b/py/desktop_Platform.py
index 5631822..0f5c02e 100644
--- a/py/desktop_Platform.py
+++ b/py/desktop_Platform.py
@@ -4,6 +4,6 @@ class desktop_Platform:
   def __init__(self):
     self.c = None
     self.ctrl = None
-    self.mousePosition = []
-    self.dbgSprites = arcade.SpriteList()
-    self.dbgTextures = []
+    self.staticSprites = arcade.SpriteList()
+    self.textureDescriptions = {}
+    self.textures = {}
diff --git a/py/desktop_Window.py b/py/desktop_Window.py
index 264a0ab..0af6e0d 100644
--- a/py/desktop_Window.py
+++ b/py/desktop_Window.py
@@ -13,7 +13,7 @@ class desktop_Window(arcade.Window):
 
     def on_draw(self):
         arcade.start_render()
-        self.p.dbgSprites.draw()
+        self.p.staticSprites.draw()
 
     def on_mouse_press(self, x, y, button, key_modifiers):
         print("mouse press:", x, y)
diff --git a/py/ht_Context.py b/py/ht_Context.py
index 5eebe45..ac3db58 100644
--- a/py/ht_Context.py
+++ b/py/ht_Context.py
@@ -6,10 +6,11 @@ class ht_Context:
         self.cfgTree = {}
         self.didLaunch = False
         self.recentField = "none"
+        self.windowAntialiasing = False
         self.windowBackgroundColor = "#000000"
-        self.windowHeight = 0
+        self.windowHeight: float  = 0
         self.windowTitle = ""
-        self.windowWidth = 0
+        self.windowWidth: float = 0
 
     def field(self, fieldName):
         return getattr(self, fieldName)