diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index b18b3e9..9f69bde 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">

diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index b18b3e9..9f69bde 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_main.iml b/.idea/modules/kudens_main.iml
index 673f217..d8b2113 100644
--- a/.idea/modules/kudens_main.iml
+++ b/.idea/modules/kudens_main.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">

diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index b18b3e9..9f69bde 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_main.iml b/.idea/modules/kudens_main.iml
index 673f217..d8b2113 100644
--- a/.idea/modules/kudens_main.iml
+++ b/.idea/modules/kudens_main.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_test.iml b/.idea/modules/kudens_test.iml
index 1916bad..fdb3b82 100644
--- a/.idea/modules/kudens_test.iml
+++ b/.idea/modules/kudens_test.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">

diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index b18b3e9..9f69bde 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_main.iml b/.idea/modules/kudens_main.iml
index 673f217..d8b2113 100644
--- a/.idea/modules/kudens_main.iml
+++ b/.idea/modules/kudens_main.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_test.iml b/.idea/modules/kudens_test.iml
index 1916bad..fdb3b82 100644
--- a/.idea/modules/kudens_test.iml
+++ b/.idea/modules/kudens_test.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/build.gradle b/build.gradle
index 22bd472..99768dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
-group 'com.persesgames'
-version '1.0.0-SNAPSHOT'
+group 'perses.games'
+version '1.1.0-SNAPSHOT'
 
 apply plugin: 'kotlin2js'
 apply plugin: 'idea'

diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index b18b3e9..9f69bde 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_main.iml b/.idea/modules/kudens_main.iml
index 673f217..d8b2113 100644
--- a/.idea/modules/kudens_main.iml
+++ b/.idea/modules/kudens_main.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_test.iml b/.idea/modules/kudens_test.iml
index 1916bad..fdb3b82 100644
--- a/.idea/modules/kudens_test.iml
+++ b/.idea/modules/kudens_test.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/build.gradle b/build.gradle
index 22bd472..99768dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
-group 'com.persesgames'
-version '1.0.0-SNAPSHOT'
+group 'perses.games'
+version '1.1.0-SNAPSHOT'
 
 apply plugin: 'kotlin2js'
 apply plugin: 'idea'
diff --git a/src/main/kotlin/games/perses/game/Game.kt b/src/main/kotlin/games/perses/game/Game.kt
index 0bb309d..8f6185d 100644
--- a/src/main/kotlin/games/perses/game/Game.kt
+++ b/src/main/kotlin/games/perses/game/Game.kt
@@ -55,7 +55,7 @@
     var clearRed = 0f
     var clearGreen = 0f
     var clearBlue = 0f
-    var clearAlpha = 0f
+    var clearAlpha = 1f
 
     var fps = 0
     var fpsCount = 0

diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index b18b3e9..9f69bde 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_main.iml b/.idea/modules/kudens_main.iml
index 673f217..d8b2113 100644
--- a/.idea/modules/kudens_main.iml
+++ b/.idea/modules/kudens_main.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:main" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/.idea/modules/kudens_test.iml b/.idea/modules/kudens_test.iml
index 1916bad..fdb3b82 100644
--- a/.idea/modules/kudens_test.iml
+++ b/.idea/modules/kudens_test.iml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.type="sourceSet" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+<module external.linked.project.id="kudens:test" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="perses.games" external.system.module.type="sourceSet" external.system.module.version="1.1.0-SNAPSHOT" type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
       <configuration version="1">
diff --git a/build.gradle b/build.gradle
index 22bd472..99768dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
-group 'com.persesgames'
-version '1.0.0-SNAPSHOT'
+group 'perses.games'
+version '1.1.0-SNAPSHOT'
 
 apply plugin: 'kotlin2js'
 apply plugin: 'idea'
diff --git a/src/main/kotlin/games/perses/game/Game.kt b/src/main/kotlin/games/perses/game/Game.kt
index 0bb309d..8f6185d 100644
--- a/src/main/kotlin/games/perses/game/Game.kt
+++ b/src/main/kotlin/games/perses/game/Game.kt
@@ -55,7 +55,7 @@
     var clearRed = 0f
     var clearGreen = 0f
     var clearBlue = 0f
-    var clearAlpha = 0f
+    var clearAlpha = 1f
 
     var fps = 0
     var fpsCount = 0
diff --git a/src/main/kotlin/games/perses/game/Screen.kt b/src/main/kotlin/games/perses/game/Screen.kt
index 5d00bd4..6dc3525 100644
--- a/src/main/kotlin/games/perses/game/Screen.kt
+++ b/src/main/kotlin/games/perses/game/Screen.kt
@@ -8,13 +8,9 @@
 
 abstract class Screen {
 
-    open fun loadResources() {
+    open fun loadResources() {}
 
-    }
-
-    open fun closeResources() {
-
-    }
+    open fun closeResources() {}
 
     abstract fun update(time: Float, delta: Float)
 
@@ -22,7 +18,6 @@
 
 }
 
-
 class DefaultScreen: Screen() {
     override fun update(time: Float, delta: Float) {
     }
@@ -32,4 +27,4 @@
         Game.gl().clearColor(1f, 1f, 0f, 1f)
         Game.gl().clear(WebGLRenderingContext.COLOR_BUFFER_BIT)
     }
-}
\ No newline at end of file
+}