sorted and renamed all drawables

app/build/intermediates/res/merged/debug/layout/levelbutton.xml

@@ -54,7 +54,7 @@
         android:id="@+id/levelbutton_lock"
         android:layout_width="100dp"
         android:layout_height="100dp"
-        android:src="@drawable/lock_locked"
+        android:src="@drawable/guis_lock_locked"
         android:layout_centerInParent="true"
         android:visibility="invisible"
         android:layout_weight="1"/>

app/build/intermediates/res/merged/debug/layout/levelup_message.xml

@@ -38,7 +38,7 @@
             android:layout_height="10dp"
             android:id="@+id/imageView"
             android:layout_gravity="center_horizontal"
-            android:src="@drawable/splitter"
+            android:src="@drawable/guis_splitter"
             android:layout_marginTop="10dp"/>
 
         <LinearLayout

app/build/intermediates/res/merged/debug/layout/tool_slot.xml

@@ -9,6 +9,6 @@
         android:layout_height="70dp"
         android:layout_gravity="center"
         android:background="@drawable/xml_background_toolslot"
-        android:src="@drawable/tools_rampbutton"/>
+        android:src="@drawable/tools_ramp_button"/>
 
 </FrameLayout>

app/build/intermediates/res/merged/debug/layout/toolbutton.xml

@@ -8,13 +8,13 @@
         android:layout_width="70dp"
         android:layout_height="60dp"
         android:layout_centerInParent="true"
-        android:src="@drawable/tools_rampbutton"/>
+        android:src="@drawable/tools_ramp_button"/>
 
     <ImageView
         android:id="@+id/toolProgressButtonAnimation"
         android:layout_width="70dp"
         android:layout_height="60dp"
-        android:src="@drawable/tools_rampbutton"
+        android:src="@drawable/tools_ramp_button"
         android:visibility="invisible"/>
 
     <ProgressBar

app/build/intermediates/res/merged/debug/layout/unlock_message.xml

@@ -9,7 +9,7 @@
         android:layout_width="40dp"
         android:layout_height="40dp"
         android:id="@+id/unlockmessage_toolimage"
-        android:src="@drawable/tools_rampbutton"
+        android:src="@drawable/tools_ramp_button"
         android:layout_gravity="center_vertical"/>
 
     <TextView

app/build/intermediates/res/merged/debug/layout/world_button.xml

@@ -22,7 +22,7 @@
         android:layout_centerHorizontal="true"
         android:layout_marginTop="10dp"
         android:adjustViewBounds="true"
-        android:src="@drawable/previews_grass"
+        android:src="@drawable/world_previews_grass"
         android:layout_width="150dp"/>
 
     <RelativeLayout
@@ -44,7 +44,7 @@
                 android:layout_width="30sp"
                 android:layout_height="30sp"
                 android:layout_alignParentStart="true"
-                android:src="@drawable/tick"/>
+                android:src="@drawable/guis_tick"/>
 
             <TextView
                 android:id="@+id/worldbutton_levelcount"
@@ -106,7 +106,7 @@
         android:id="@+id/worldbutton_lock"
         android:layout_width="150dp"
         android:layout_height="150dp"
-        android:src="@drawable/lock_locked"
+        android:src="@drawable/guis_lock_locked"
         android:visibility="visible"
         android:layout_alignBottom="@+id/worldbutton_preview"
         android:layout_alignLeft="@+id/worldbutton_preview"