Images render with their top left at the given location

[JoeFurfaro]

I think it should be their center. Here is an example:

From this code:
canvas "Test.png" 1000 1000 { image 0 0 200 "scor.jpg" }

Svg is:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="1000" height="1000"> <image x="500" y="500" width="200" height="104.16666666666667" href="scor.jpg" /> </svg>