I am new to WPF development, I am creating a button style as per my designer provided it. 
While creating button, I am facing an weird problem. I am not finding way Remove button Radius. I tried "Round Corner = false", but it is removing only Right side round corners. Moreover I am not finding way how to remove Inner silver border in button. I think this issue is caused because there is a default style applied to button, (chrome style in my case).

Is there any way to can I remove all round corners and Inner Border.
Thanks in anticipation.