diff --git a/lib/cyberarm_engine/ui/element.rb b/lib/cyberarm_engine/ui/element.rb
index 2b49eae..6395048 100644
--- a/lib/cyberarm_engine/ui/element.rb
+++ b/lib/cyberarm_engine/ui/element.rb
@@ -13,10 +13,10 @@ module CyberarmEngine
       @options = options
       @block = block
 
-      @focus   = false
-      @enabled = true
-      @visible = true
-      @tip = @options[:tip] || ""
+      @focus   = @options[:focus].nil?   ? false : @options[:focus]
+      @enabled = @options[:enabled].nil? ? true  : @options[:enabled]
+      @visible = @options[:visible].nil? ? true  : @options[:visible]
+      @tip     = @options[:tip] || ""
 
       @style = Style.new(options)
 
diff --git a/lib/cyberarm_engine/ui/elements/button.rb b/lib/cyberarm_engine/ui/elements/button.rb
index 64cd8bb..f9a711e 100644
--- a/lib/cyberarm_engine/ui/elements/button.rb
+++ b/lib/cyberarm_engine/ui/elements/button.rb
@@ -37,7 +37,10 @@ module CyberarmEngine
       def enter(_sender)
         @focus = false unless window.button_down?(Gosu::MsLeft)
 
-        if @focus
+        if !@enabled
+          @style.background_canvas.background = default(:disabled, :background)
+          @text.color = default(:disabled, :color)
+        elsif @focus
           @style.background_canvas.background = default(:active, :background)
           @text.color = default(:active, :color)
         else
@@ -50,9 +53,16 @@ module CyberarmEngine
 
       def left_mouse_button(_sender, _x, _y)
         @focus = true
-        @style.background_canvas.background = default(:active, :background)
+
+        unless @enabled
+          @style.background_canvas.background = default(:disabled, :background)
+          @text.color = default(:disabled, :color)
+        else
+          @style.background_canvas.background = default(:active, :background)
+          @text.color = default(:active, :color)
+        end
+
         window.current_state.focus = self
-        @text.color = default(:active, :color)
 
         :handled
       end
@@ -64,14 +74,19 @@ module CyberarmEngine
       end
 
       def clicked_left_mouse_button(_sender, _x, _y)
-        @block.call(self) if @block
+        @block.call(self) if @enabled && @block
 
         :handled
       end
 
       def leave(_sender)
-        @style.background_canvas.background = default(:background)
-        @text.color = default(:color)
+        unless @enabled
+          @style.background_canvas.background = default(:disabled, :background)
+          @text.color = default(:disabled, :color)
+        else
+          @style.background_canvas.background = default(:background)
+          @text.color = default(:color)
+        end
 
         :handled
       end
@@ -83,6 +98,14 @@ module CyberarmEngine
       end
 
       def recalculate
+        unless @enabled
+          @style.background_canvas.background = default(:disabled, :background)
+          @text.color = default(:disabled, :color)
+        else
+          @style.background_canvas.background = default(:background)
+          @text.color = default(:color)
+        end
+
         if @image
           @width = 0
           @height = 0
diff --git a/lib/cyberarm_engine/ui/elements/label.rb b/lib/cyberarm_engine/ui/elements/label.rb
index 178877e..b815cf2 100644
--- a/lib/cyberarm_engine/ui/elements/label.rb
+++ b/lib/cyberarm_engine/ui/elements/label.rb
@@ -19,7 +19,7 @@ module CyberarmEngine
       end
 
       def clicked_left_mouse_button(_sender, _x, _y)
-        @block&.call(self)
+        @block&.call(self) if @enabled
 
         # return :handled
       end
diff --git a/lib/cyberarm_engine/ui/theme.rb b/lib/cyberarm_engine/ui/theme.rb
index 0854afe..a2bf2c9 100644
--- a/lib/cyberarm_engine/ui/theme.rb
+++ b/lib/cyberarm_engine/ui/theme.rb
@@ -82,6 +82,11 @@ module CyberarmEngine
         active: {
           color: Gosu::Color::BLACK,
           background: ["ffB23E41".to_i(16)]
+        },
+
+        disabled: {
+          color: Gosu::Color::GRAY,
+          background: 0xff303030
         }
       },
 
diff --git a/lib/cyberarm_engine/window.rb b/lib/cyberarm_engine/window.rb
index 9c98ffe..1367b3b 100644
--- a/lib/cyberarm_engine/window.rb
+++ b/lib/cyberarm_engine/window.rb
@@ -21,7 +21,7 @@ module CyberarmEngine
     def initialize(width: 800, height: 600, fullscreen: false, update_interval: 1000.0 / 60, resizable: false, borderless: false)
       @show_cursor = false
 
-      super(width, height, fullscreen: fullscreen, update_interval: update_interval, resizable: resizable, borderless: borderless)
+      super(width, height, fullscreen: fullscreen, update_interval: update_interval, resizable: resizable)
       $window = self
       @last_frame_time = Gosu.milliseconds - 1
       @current_frame_time = Gosu.milliseconds