Blender not renderering glass color?

Hi, I’m fairly new to blender and I’m trying to use a glass material. I have used it before but this time I can’t get it to work. I’m using Yafray to render it and it always renders clear, not colored. Any idea what could be wrong? Settings: R 0, G 0, B 1, Alpha 0.1, Ray mirror enabled, Ray mirror 0.2, Ray transp enabled, IOR 1.52. Blend file:

EDIT: Actually, some blue is rendered where light reflects off of the sphere, but the rest is clear.

On your glass material settings on the RayTransp tab, set the Mat. Preset to “Color Glass”.