[Frameit] apply rounded corners before framing

frameit/lib/frameit/editor.rb

@@ -109,6 +109,24 @@ def put_into_frame
         end
       end
 
+      maskData = MiniMagick::Tool::Convert.new do |img|
+        img.size("#{screenshot.size[0]}x#{screenshot.size[1]}")
+        img.canvas('none')
+        img.draw("roundrectangle 0,0,#{screenshot.size[0]},#{screenshot.size[1]},100,100")
+        img << 'png:-'
+      end
+
+      # Create a mask
+      mask = MiniMagick::Image.read(maskData)
+
+      if screenshot.device.id.include? "iphone-14"
+        image = @image.composite(mask, "png") do |c|
+          c.channel("A")
+          c.compose("DstIn")
+          c.alpha("on")
+        end
+      end
+
       @image = frame.composite(image, "png") do |c|
         c.compose("DstOver")
         c.geometry(offset['offset'])