title: Creating a png with specific rgb values (mac)
body: <p>I'm using a Mac. When I try creating a png with specific rgb values (i.e. 128,0,0), this is fine (I've tried using both GIMP and photoshop).
  Now when I open the png file, the color looks slightly different. And when I use the DigitalColor Meter, the rgb values don't match anymore (the 128,0,0 file became 106,7,0).</p>
  
  <p>What's going on?</p>
  
  <p>Thanks</p>