diff --git a/Applications.cfg b/Applications.cfg
index cc7f702d..a46b93f2 100644
--- a/Applications.cfg
+++ b/Applications.cfg
@@ -301,7 +301,7 @@
 		url="https://raw.githubusercontent.com/IgorTimofeev/OpenComputers/master/lib/GUI.lua",
 		type="Library",
 		preloadFile=true,
-		version=1.71,
+		version=1.72,
 	},
 	{
 		path="/lib/rayEngine.lua",
diff --git a/Documentation/GUI.md b/Documentation/GUI.md
index a6324691..dbff96be 100644
--- a/Documentation/GUI.md
+++ b/Documentation/GUI.md
@@ -510,11 +510,11 @@ GUI.**button**( x, y, width, height, buttonColor, textColor, buttonPressedColor,
 
  - GUI.**framedButton**(...) отрисовывается с рамкой по краям кнопки
 
- ![Imgur](http://i.imgur.com/xwuFWqG.png)
+ ![Imgur](https://i.imgur.com/ajmXYFR.png)
 
  - GUI.**roundedButton**(...) имеет симпатичные скругленные уголки
 
- ![Imgur](http://i.imgur.com/p2exfKn.png)
+ ![Imgur](https://i.imgur.com/0UO3Vbm.png)
  
 Для удобства имеется также альтернативные способы создания кнопки: 
 
@@ -558,7 +558,7 @@ mainContainer:startEventHandling()
 
 Результат:
 
-![Imgur](http://i.imgur.com/yJ9V4c8.gif)
+![Imgur](https://i.imgur.com/9zZvR6g.gif)
 
 GUI.**inputField**( x, y, width, height, backgroundColor, textColor, placeholderTextColor, backgroundFocusedColor, textFocusedColor, text, [placeholderText, eraseTextOnFocus, textMask ): *table* inputField
 ------------------------------------------------------------------------
diff --git a/lib/GUI.lua b/lib/GUI.lua
index 25b88986..b3eac477 100755
--- a/lib/GUI.lua
+++ b/lib/GUI.lua
@@ -475,22 +475,30 @@ end
 local function buttonDraw(object)
 	local xText, yText = GUI.getAlignmentCoordinates(object, {width = unicode.len(object.text), height = 1})
 
-	local buttonColor, textColor, transparency = object.colors.default.background, object.colors.default.text, object.colors.default.transparency
+	local buttonColor, textColor = object.colors.default.background, object.colors.default.text
 	if object.disabled then
-		buttonColor, textColor, transparency = object.colors.disabled.background, object.colors.disabled.text, object.colors.disabled.transparency
+		buttonColor, textColor = object.colors.disabled.background, object.colors.disabled.text
 	else
 		if object.pressed then
-			buttonColor, textColor, transparency = object.colors.pressed.background, object.colors.pressed.text, object.colors.pressed.transparency
+			buttonColor, textColor = object.colors.pressed.background, object.colors.pressed.text
 		end
 	end
 
 	if buttonColor then
 		if object.buttonType == 1 then
-			buffer.square(object.x, object.y, object.width, object.height, buttonColor, textColor, " ", transparency)
+			buffer.square(object.x, object.y, object.width, object.height, buttonColor, textColor, " ")
 		elseif object.buttonType == 2 then
-			buffer.text(object.x + 1, object.y, buttonColor, string.rep("▄", object.width - 2), transparency)
-			buffer.square(object.x, object.y + 1, object.width, object.height - 2, buttonColor, textColor, " ", transparency)
-			buffer.text(object.x + 1, object.y + object.height - 1, buttonColor, string.rep("▀", object.width - 2), transparency)
+			local x2, y2 = object.x + object.width - 1, object.y + object.height - 1
+			
+			buffer.text(object.x + 1, object.y, buttonColor, string.rep("▄", object.width - 2))
+			buffer.text(object.x, object.y, buttonColor, "⣠")
+			buffer.text(x2, object.y, buttonColor, "⣄")
+			
+			buffer.square(object.x, object.y + 1, object.width, object.height - 2, buttonColor, textColor, " ")
+			
+			buffer.text(object.x + 1, y2, buttonColor, string.rep("▀", object.width - 2))
+			buffer.text(object.x, y2, buttonColor, "⠙")
+			buffer.text(x2, y2, buttonColor, "⠋")
 		else
 			buffer.frame(object.x, object.y, object.width, object.height, buttonColor)
 		end