diff --git a/dlanguilib.visualdproj b/dlanguilib.visualdproj
index fbb01e43..68c1fdd7 100644
--- a/dlanguilib.visualdproj
+++ b/dlanguilib.visualdproj
@@ -355,6 +355,7 @@
      <File path="src\dlangui\dialogs\msgbox.d" />
     </Folder>
     <Folder name="graphics">
+     <File path="src\dlangui\graphics\colors.d" />
      <File path="src\dlangui\graphics\drawbuf.d" />
      <File path="src\dlangui\graphics\fonts.d" />
      <File path="src\dlangui\graphics\ftfonts.d" />
diff --git a/examples/example1/src/main.d b/examples/example1/src/main.d
index 93d29374..84debfc4 100644
--- a/examples/example1/src/main.d
+++ b/examples/example1/src/main.d
@@ -424,15 +424,30 @@ extern (C) int UIAppMain(string[] args) {
         }
 
         {
-		    LinearLayout layout3 = new LinearLayout("tab3");
+		    LinearLayout layout3 = new VerticalLayout("tab3");
+            // 3 types of buttons: Button, ImageButton, ImageTextButton
 		    layout3.addChild(new TextWidget(null, "Buttons in HorizontalLayout"d));
 		    WidgetGroup buttons1 = new HorizontalLayout();
-            buttons1.addChild(new Button("btn1", "Button 1"d));
-            buttons1.addChild(new Button("btn2", "Button 2"d));
-            buttons1.addChild(new Button("btn3", "Button 3"d));
-            buttons1.addChild(new ResizerWidget());
-            buttons1.addChild(new Button("btn4", "Button 4"d));
+		    buttons1.addChild(new TextWidget(null, "Button widgets: "d));
+            buttons1.addChild(new Button("btn1", "Button"d));
+            buttons1.addChild((new Button("btn2", "Disabled Button"d)).enabled(false));
+		    buttons1.addChild(new TextWidget(null, "ImageButton widgets: "d));
+            buttons1.addChild(new ImageButton("btn3", "text-plain"));
+		    buttons1.addChild(new TextWidget(null, "disabled: "d));
+            buttons1.addChild((new ImageButton("btn4", "folder")).enabled(false));
+		    buttons1.addChild(new TextWidget(null, "ImageTextButton widgets: "d));
+            buttons1.addChild(new ImageTextButton("btn5", "text-plain", "Enabled"d));
+            buttons1.addChild((new ImageTextButton("btn6", "folder", "Disabled"d)).enabled(false));
             layout3.addChild(buttons1);
+
+		    WidgetGroup buttons11 = new HorizontalLayout();
+		    buttons11.addChild(new TextWidget(null, "Construct buttons by action: "d));
+            Action FILE_OPEN_ACTION = new Action(ACTION_FILE_OPEN, "MENU_FILE_OPEN"c, "document-open", KeyCode.KEY_O, KeyFlag.Control);
+            buttons11.addChild(new Button(FILE_OPEN_ACTION));
+            buttons11.addChild(new ImageButton(FILE_OPEN_ACTION));
+            buttons11.addChild(new ImageTextButton(FILE_OPEN_ACTION));
+            layout3.addChild(buttons11);
+
             layout3.addChild(new VSpacer());
 		    layout3.addChild(new TextWidget(null, "CheckBoxes in HorizontalLayout"d));
 		    WidgetGroup buttons2 = new HorizontalLayout();
diff --git a/res/theme_default.xml b/res/theme_default.xml
index d3fe642d..b6d952e6 100644
--- a/res/theme_default.xml
+++ b/res/theme_default.xml
@@ -5,6 +5,7 @@
         align="Center"
         margins="5,5,5,5"
 	focusRectColors="#000"
+        textFlags="UnderlineHotKeys"
         />
     <style id="BUTTON_TRANSPARENT"
         backgroundImageId="btn_background_transparent"
@@ -12,7 +13,9 @@
         />
     <style id="BUTTON_LABEL"
         layoutWidth="FILL_PARENT"
+        margins="2,2,2,2"
         align="Left|VCenter"
+        textFlags="UnderlineHotKeys"
         />
     <style id="BUTTON_ICON"
         align="Center"
@@ -20,7 +23,10 @@
     <style id="TEXT"
         margins="2,2,2,2"
         padding="1,1,1,1"
-        />
+        align="Left|VCenter"
+        >
+        <state state_enabled="false" textColor="#A0000000"/>
+    </style>
     <style id="HSPACER"
         layoutWidth="FILL_PARENT"
         layoutWeight="100"
diff --git a/src/dlangui/all.d b/src/dlangui/all.d
index 5e840ffb..d9c4fd11 100644
--- a/src/dlangui/all.d
+++ b/src/dlangui/all.d
@@ -64,6 +64,7 @@ public import dlangui.widgets.grid;
 public import dlangui.widgets.tree;
 public import dlangui.widgets.combobox;
 public import dlangui.widgets.popup;
+public import dlangui.graphics.colors;
 public import dlangui.graphics.fonts;
 public import dlangui.graphics.drawbuf;
 public import dlangui.platforms.common.platform;
diff --git a/src/dlangui/graphics/colors.d b/src/dlangui/graphics/colors.d
new file mode 100644
index 00000000..e3ad6648
--- /dev/null
+++ b/src/dlangui/graphics/colors.d
@@ -0,0 +1,166 @@
+module dlangui.graphics.colors;
+
+private import std.string : strip;
+
+/// special color constant to identify value as not a color (to use default/parent value instead)
+immutable uint COLOR_UNSPECIFIED = 0xFFDEADFF;
+/// transparent color constant
+immutable uint COLOR_TRANSPARENT = 0xFFFFFFFF;
+
+
+immutable uint COLOR_TRANSFORM_OFFSET_NONE = 0x80808080;
+immutable uint COLOR_TRANSFORM_MULTIPLY_NONE = 0x40404040;
+
+uint makeRGBA(T)(T r, T g, T b, T a) {
+    return (cast(uint)a << 24)|(cast(uint)r << 16)|(cast(uint)g << 8)|(cast(uint)b);
+}
+
+/// blend two RGB pixels using alpha
+uint blendARGB(uint dst, uint src, uint alpha) {
+    uint dstalpha = dst >> 24;
+    if (dstalpha > 0x80)
+        return src;
+    uint srcr = (src >> 16) & 0xFF;
+    uint srcg = (src >> 8) & 0xFF;
+    uint srcb = (src >> 0) & 0xFF;
+    uint dstr = (dst >> 16) & 0xFF;
+    uint dstg = (dst >> 8) & 0xFF;
+    uint dstb = (dst >> 0) & 0xFF;
+    uint ialpha = 256 - alpha;
+    uint r = ((srcr * ialpha + dstr * alpha) >> 8) & 0xFF;
+    uint g = ((srcg * ialpha + dstg * alpha) >> 8) & 0xFF;
+    uint b = ((srcb * ialpha + dstb * alpha) >> 8) & 0xFF;
+    return (r << 16) | (g << 8) | b;
+}
+
+/// blend two alpha values 0..255 (255 is fully transparent, 0 is opaque)
+uint blendAlpha(uint a1, uint a2) {
+	if (!a1)
+		return a2;
+	if (!a2)
+		return a1;
+	return (((a1 ^ 0xFF) * (a2 ^ 0xFF)) >> 8) ^ 0xFF;
+}
+
+/// applies additional alpha to color
+uint addAlpha(uint color, uint alpha) {
+    alpha = blendAlpha(color >> 24, alpha);
+    return (color & 0xFFFFFF) | (alpha << 24);
+}
+
+ubyte rgbToGray(uint color) {
+    uint srcr = (color >> 16) & 0xFF;
+    uint srcg = (color >> 8) & 0xFF;
+    uint srcb = (color >> 0) & 0xFF;
+    return cast(uint)(((srcr + srcg + srcg + srcb) >> 2) & 0xFF);
+}
+
+
+// todo
+struct ColorTransformHandler {
+    void init(ref ColorTransform transform) {
+
+    }
+    uint transform(uint color) {
+        return color;
+    }
+}
+
+uint transformComponent(int src, int addBefore, int multiply, int addAfter) {
+    int add1 = (cast(int)(addBefore << 1)) - 0x100;
+    int add2 = (cast(int)(addAfter << 1)) - 0x100;
+    int mul = cast(int)(multiply << 2);
+    int res = (((src + add1) * mul) >> 8) + add2;
+    if (res < 0)
+        res = 0;
+    else if (res > 255)
+        res = 255;
+    return cast(uint)res;
+}
+
+uint transformRGBA(uint src, uint addBefore, uint multiply, uint addAfter) {
+    uint a = transformComponent(src >> 24, addBefore >> 24, multiply >> 24, addAfter >> 24);
+    uint r = transformComponent((src >> 16) & 0xFF, (addBefore >> 16) & 0xFF, (multiply >> 16) & 0xFF, (addAfter >> 16) & 0xFF);
+    uint g = transformComponent((src >> 8) & 0xFF, (addBefore >> 8) & 0xFF, (multiply >> 8) & 0xFF, (addAfter >> 8) & 0xFF);
+    uint b = transformComponent(src & 0xFF, addBefore & 0xFF, multiply & 0xFF, addAfter & 0xFF);
+    return (a << 24) | (r << 16) | (g << 8) | b;
+}
+
+struct ColorTransform {
+    uint addBefore = COLOR_TRANSFORM_OFFSET_NONE;
+    uint multiply = COLOR_TRANSFORM_MULTIPLY_NONE;
+    uint addAfter = COLOR_TRANSFORM_OFFSET_NONE;
+    @property bool empty() const {
+        return addBefore == COLOR_TRANSFORM_OFFSET_NONE 
+            && multiply == COLOR_TRANSFORM_MULTIPLY_NONE
+            && addAfter == COLOR_TRANSFORM_OFFSET_NONE;
+    }
+    uint transform(uint color) {
+        return transformRGBA(color, addBefore, multiply, addAfter);
+    }
+}
+
+
+/// blend two RGB pixels using alpha
+ubyte blendGray(ubyte dst, ubyte src, uint alpha) {
+    uint ialpha = 256 - alpha;
+    return cast(ubyte)(((src * ialpha + dst * alpha) >> 8) & 0xFF);
+}
+
+/// returns true if color is #FFxxxxxx (color alpha is 255)
+bool isFullyTransparentColor(uint color) pure nothrow {
+    return (color >> 24) == 0xFF;
+}
+
+/// decodes hex digit (0..9, a..f, A..F), returns uint.max if invalid
+uint decodeHexDigit(char ch) {
+    if (ch >= '0' && ch <= '9')
+        return ch - '0';
+    else if (ch >= 'a' && ch <= 'f')
+        return ch - 'a' + 10;
+    else if (ch >= 'A' && ch <= 'F')
+        return ch - 'A' + 10;
+    return uint.max;
+}
+
+/// decode color string  supported formats: #RGB #ARGB #RRGGBB #AARRGGBB
+uint decodeHexColor(string s, uint defValue = 0) {
+    s = strip(s);
+    switch (s) {
+        case "@null":
+        case "transparent":
+            return COLOR_TRANSPARENT;
+        case "black":
+            return 0x000000;
+        case "white":
+            return 0xFFFFFF;
+        case "red":
+            return 0xFF0000;
+        case "green":
+            return 0x00FF00;
+        case "blue":
+            return 0x0000FF;
+        case "gray":
+            return 0x808080;
+        case "lightgray":
+        case "silver":
+            return 0xC0C0C0;
+        default:
+            break;
+    }
+    if (s.length != 4 && s.length != 5 && s.length != 7 && s.length != 9)
+        return defValue;
+    if (s[0] != '#')
+        return defValue;
+    uint value = 0;
+    for (int i = 1; i < s.length; i++) {
+        uint digit = decodeHexDigit(s[i]);
+        if (digit == uint.max)
+            return defValue;
+        value = (value << 4) | digit;
+        if (s.length < 7) // double the same digit for short forms
+            value = (value << 4) | digit;
+    }
+    return value;
+}
+
diff --git a/src/dlangui/graphics/drawbuf.d b/src/dlangui/graphics/drawbuf.d
index c16b80dd..c55cdf5d 100644
--- a/src/dlangui/graphics/drawbuf.d
+++ b/src/dlangui/graphics/drawbuf.d
@@ -19,109 +19,8 @@ module dlangui.graphics.drawbuf;
 
 public import dlangui.core.types;
 import dlangui.core.logger;
+import dlangui.graphics.colors;
 
-immutable uint COLOR_TRANSFORM_OFFSET_NONE = 0x80808080;
-immutable uint COLOR_TRANSFORM_MULTIPLY_NONE = 0x40404040;
-
-uint makeRGBA(T)(T r, T g, T b, T a) {
-    return (cast(uint)a << 24)|(cast(uint)r << 16)|(cast(uint)g << 8)|(cast(uint)b);
-}
-
-/// blend two RGB pixels using alpha
-uint blendARGB(uint dst, uint src, uint alpha) {
-    uint dstalpha = dst >> 24;
-    if (dstalpha > 0x80)
-        return src;
-    uint srcr = (src >> 16) & 0xFF;
-    uint srcg = (src >> 8) & 0xFF;
-    uint srcb = (src >> 0) & 0xFF;
-    uint dstr = (dst >> 16) & 0xFF;
-    uint dstg = (dst >> 8) & 0xFF;
-    uint dstb = (dst >> 0) & 0xFF;
-    uint ialpha = 256 - alpha;
-    uint r = ((srcr * ialpha + dstr * alpha) >> 8) & 0xFF;
-    uint g = ((srcg * ialpha + dstg * alpha) >> 8) & 0xFF;
-    uint b = ((srcb * ialpha + dstb * alpha) >> 8) & 0xFF;
-    return (r << 16) | (g << 8) | b;
-}
-
-/// blend two alpha values 0..255 (255 is fully transparent, 0 is opaque)
-uint blendAlpha(uint a1, uint a2) {
-	if (!a1)
-		return a2;
-	if (!a2)
-		return a1;
-	return (((a1 ^ 0xFF) * (a2 ^ 0xFF)) >> 8) ^ 0xFF;
-}
-
-/// applies additional alpha to color
-uint addAlpha(uint color, uint alpha) {
-    alpha = blendAlpha(color >> 24, alpha);
-    return (color & 0xFFFFFF) | (alpha << 24);
-}
-
-ubyte rgbToGray(uint color) {
-    uint srcr = (color >> 16) & 0xFF;
-    uint srcg = (color >> 8) & 0xFF;
-    uint srcb = (color >> 0) & 0xFF;
-    return cast(uint)(((srcr + srcg + srcg + srcb) >> 2) & 0xFF);
-}
-
-// todo
-struct ColorTransformHandler {
-    void init(ref ColorTransform transform) {
-
-    }
-    uint transform(uint color) {
-        return color;
-    }
-}
-
-uint transformComponent(int src, int addBefore, int multiply, int addAfter) {
-    int add1 = (cast(int)(addBefore << 1)) - 0x100;
-    int add2 = (cast(int)(addAfter << 1)) - 0x100;
-    int mul = cast(int)(multiply << 2);
-    int res = (((src + add1) * mul) >> 8) + add2;
-    if (res < 0)
-        res = 0;
-    else if (res > 255)
-        res = 255;
-    return cast(uint)res;
-}
-
-uint transformRGBA(uint src, uint addBefore, uint multiply, uint addAfter) {
-    uint a = transformComponent(src >> 24, addBefore >> 24, multiply >> 24, addAfter >> 24);
-    uint r = transformComponent((src >> 16) & 0xFF, (addBefore >> 16) & 0xFF, (multiply >> 16) & 0xFF, (addAfter >> 16) & 0xFF);
-    uint g = transformComponent((src >> 8) & 0xFF, (addBefore >> 8) & 0xFF, (multiply >> 8) & 0xFF, (addAfter >> 8) & 0xFF);
-    uint b = transformComponent(src & 0xFF, addBefore & 0xFF, multiply & 0xFF, addAfter & 0xFF);
-    return (a << 24) | (r << 16) | (g << 8) | b;
-}
-
-struct ColorTransform {
-    uint addBefore = COLOR_TRANSFORM_OFFSET_NONE;
-    uint multiply = COLOR_TRANSFORM_MULTIPLY_NONE;
-    uint addAfter = COLOR_TRANSFORM_OFFSET_NONE;
-    @property bool empty() const {
-        return addBefore == COLOR_TRANSFORM_OFFSET_NONE 
-            && multiply == COLOR_TRANSFORM_MULTIPLY_NONE
-            && addAfter == COLOR_TRANSFORM_OFFSET_NONE;
-    }
-    uint transform(uint color) {
-        return transformRGBA(color, addBefore, multiply, addAfter);
-    }
-}
-
-
-/// blend two RGB pixels using alpha
-ubyte blendGray(ubyte dst, ubyte src, uint alpha) {
-    uint ialpha = 256 - alpha;
-    return cast(ubyte)(((src * ialpha + dst * alpha) >> 8) & 0xFF);
-}
-
-/// returns true if color is #FFxxxxxx (color alpha is 255)
-bool isFullyTransparentColor(uint color) pure nothrow {
-    return (color >> 24) == 0xFF;
-}
 
 /**
  * 9-patch image scaling information (see Android documentation).
diff --git a/src/dlangui/graphics/images.d b/src/dlangui/graphics/images.d
index e00e2075..e60e286f 100644
--- a/src/dlangui/graphics/images.d
+++ b/src/dlangui/graphics/images.d
@@ -39,6 +39,7 @@ version (USE_DLIBIMAGE) {
 
 import dlangui.core.logger;
 import dlangui.core.types;
+import dlangui.graphics.colors;
 import dlangui.graphics.drawbuf;
 import std.stream;
 import std.conv : to;
diff --git a/src/dlangui/graphics/resources.d b/src/dlangui/graphics/resources.d
index 973be1ef..922600de 100644
--- a/src/dlangui/graphics/resources.d
+++ b/src/dlangui/graphics/resources.d
@@ -28,6 +28,7 @@ module dlangui.graphics.resources;
 
 import dlangui.graphics.images;
 import dlangui.graphics.drawbuf;
+import dlangui.graphics.colors;
 import dlangui.core.logger;
 import std.file;
 import std.algorithm;
@@ -93,22 +94,7 @@ class FrameDrawable : Drawable {
     @property override Rect padding() { return _frameWidths; }
 }
 
-/// decode color string #AARRGGBB, e.g. #5599AA
-static uint decodeHexColor(string s) {
-    uint value = 0;
-    foreach(c; s) {
-        int digit = -1;
-        if (c >='0' && c <= '9')
-            digit = c - '0';
-        else if (c >='a' && c <= 'f')
-            digit = c - 'a' + 10;
-        else if (c >='A' && c <= 'F')
-            digit = c - 'A' + 10;
-        if (digit >= 0)
-            value = (value << 4) | digit;
-    }
-    return value;
-}
+
 /// decode size string, e.g. 1px or 2 or 3pt
 static uint decodeDimension(string s) {
     uint value = 0;
diff --git a/src/dlangui/widgets/controls.d b/src/dlangui/widgets/controls.d
index 63b51404..7984bf38 100644
--- a/src/dlangui/widgets/controls.d
+++ b/src/dlangui/widgets/controls.d
@@ -397,7 +397,7 @@ class Button : Widget {
 		FontRef font = font();
         Point sz = font.textSize(text);
         applyAlign(rc, sz);
-        font.drawText(buf, rc.left, rc.top, text, textColor);
+        font.drawText(buf, rc.left, rc.top, text, textColor, 4, 0, textFlags);
     }
 
 }
diff --git a/src/dlangui/widgets/styles.d b/src/dlangui/widgets/styles.d
index 9913f2e2..61babee2 100644
--- a/src/dlangui/widgets/styles.d
+++ b/src/dlangui/widgets/styles.d
@@ -25,14 +25,12 @@ private import std.string;
 private import std.algorithm;
 
 import dlangui.core.types;
+import dlangui.graphics.colors;
 import dlangui.graphics.fonts;
 import dlangui.graphics.drawbuf;
 import dlangui.graphics.resources;
 
 immutable ubyte ALIGN_UNSPECIFIED = 0;
-immutable uint COLOR_UNSPECIFIED = 0xFFDEADFF;
-/// transparent color constant
-immutable uint COLOR_TRANSPARENT = 0xFFFFFFFF;
 /// unspecified font size constant - to take parent style property value
 immutable ushort FONT_SIZE_UNSPECIFIED = 0xFFFF;
 /// unspecified font weight constant - to take parent style property value
@@ -95,32 +93,6 @@ enum TextFlag : uint {
 	Underline = 8
 }
 
-/// custom drawable attribute container for styles
-class DrawableAttribute {
-    protected string _id;
-    protected string _drawableId;
-    protected DrawableRef _drawable;
-    protected bool _initialized;
-    this(string id, string drawableId) {
-        _id = id;
-        _drawableId = drawableId;
-    }
-    @property string id() const { return _id; }
-    @property string drawableId() const { return _drawableId; }
-    @property void drawableId(string newDrawable) { _drawableId = newDrawable; clear(); }
-    @property ref DrawableRef drawable() const {
-        if (!_drawable.isNull)
-            return (cast(DrawableAttribute)this)._drawable;
-        (cast(DrawableAttribute)this)._drawable = drawableCache.get(_id);
-        (cast(DrawableAttribute)this)._initialized = true;
-        return (cast(DrawableAttribute)this)._drawable;
-    }
-    void clear() {
-        _drawable.clear();
-        _initialized = false;
-    }
-}
-
 /// style properties
 class Style {
 	protected string _id;
@@ -905,58 +877,6 @@ Rect decodeRect(string s) {
 	return Rect(0,0,0,0);
 }
 
-/// decodes hex digit (0..9, a..f, A..F), returns uint.max if invalid
-uint decodeHexDigit(char ch) {
-    if (ch >= '0' && ch <= '9')
-        return ch - '0';
-    else if (ch >= 'a' && ch <= 'f')
-        return ch - 'a' + 10;
-    else if (ch >= 'A' && ch <= 'F')
-        return ch - 'A' + 10;
-    return uint.max;
-}
-
-/// supported formats: #RGB #ARGB #RRGGBB #AARRGGBB
-uint decodeColor(string s, uint defValue) {
-    s = strip(s);
-    switch (s) {
-        case "@null":
-        case "transparent":
-            return COLOR_TRANSPARENT;
-        case "black":
-            return 0x000000;
-        case "white":
-            return 0xFFFFFF;
-        case "red":
-            return 0xFF0000;
-        case "green":
-            return 0x00FF00;
-        case "blue":
-            return 0x0000FF;
-        case "gray":
-            return 0x808080;
-        case "lightgray":
-        case "silver":
-            return 0xC0C0C0;
-        default:
-            break;
-    }
-    if (s.length != 4 && s.length != 5 && s.length != 7 && s.length != 9)
-        return defValue;
-    if (s[0] != '#')
-        return defValue;
-    uint value = 0;
-    for (int i = 1; i < s.length; i++) {
-        uint digit = decodeHexDigit(s[i]);
-        if (digit == uint.max)
-            return defValue;
-        value = (value << 4) | digit;
-        if (s.length < 7) // double the same digit for short forms
-            value = (value << 4) | digit;
-    }
-    return value;
-}
-
 private import std.array : split;
 
 /// Decode color list attribute, e.g.: "#84A, #99FFFF" -> [0x8844aa, 0x99ffff]
@@ -966,7 +886,7 @@ uint[] decodeFocusRectColors(string s) {
         return null;
     uint[] res = new uint[colors.length];
     for (int i = 0; i < colors.length; i++) {
-        uint cl = decodeColor(colors[i], COLOR_UNSPECIFIED);
+        uint cl = decodeHexColor(colors[i], COLOR_UNSPECIFIED);
         if (cl == COLOR_UNSPECIFIED)
             return null;
         res[i] = cl;
@@ -1120,7 +1040,7 @@ bool loadStyleAttributes(Style style, Element elem, bool allowStates) {
 			// <color id="buttons_panel_color" value="#303080"/>
 			string colorid = attrValue(item, "id");
 			string colorvalue = attrValue(item, "value");
-            uint color = decodeColor(colorvalue, COLOR_TRANSPARENT);
+            uint color = decodeHexColor(colorvalue, COLOR_TRANSPARENT);
 			if (colorid)
 				style.setCustomColor(colorid, color);
 		}
@@ -1217,6 +1137,33 @@ Theme loadTheme(string resourceId) {
 	return null;
 }
 
+/// custom drawable attribute container for styles
+class DrawableAttribute {
+    protected string _id;
+    protected string _drawableId;
+    protected DrawableRef _drawable;
+    protected bool _initialized;
+    this(string id, string drawableId) {
+        _id = id;
+        _drawableId = drawableId;
+    }
+    @property string id() const { return _id; }
+    @property string drawableId() const { return _drawableId; }
+    @property void drawableId(string newDrawable) { _drawableId = newDrawable; clear(); }
+    @property ref DrawableRef drawable() const {
+        if (!_drawable.isNull)
+            return (cast(DrawableAttribute)this)._drawable;
+        (cast(DrawableAttribute)this)._drawable = drawableCache.get(_id);
+        (cast(DrawableAttribute)this)._initialized = true;
+        return (cast(DrawableAttribute)this)._drawable;
+    }
+    void clear() {
+        _drawable.clear();
+        _initialized = false;
+    }
+}
+
+
 shared static ~this() {
 	currentTheme = null;
 }