Images and other predicates

Images are like URLs:

• '%image(test-image.png)' will become
• '%image(test-image.png, a test image)' will become (the text becomes the "alt" attribute of the image)

You can also specify an ALT tag, width and height, position and border width: '%image(test-image.png, "ALT tag", 500, 500, left, 0)' becomes