title: Glossy shiny square button in WPF - XAML
body: <p>I am trying to find rectangle buttons with gloss effect.
  all examples are relevant for round buttons. (and when editing the code, the gloss effect is not suit the rectangle.</p>
  
  <p>Do anyone know about xaml examples for button like in the images below?
  <img src="https://i.stack.imgur.com/XAgzU.jpg" alt="glossy-shiny-square-button"></p>
  
  <p><img src="https://i.stack.imgur.com/xhrcs.png" alt="enter image description here"></p>