SVG: color of the shadow

Question

I want to write a simple rectangle with a red shadow in SVG. I have a simple filter:

Answer 1

1. You have provided invalid SVG - you need to close your element.

2. Your example (fixed) shows a red shadow for me in Chrome. Here's what this URL looks like for me with Chrome v15:

   

What OS/browser/version are you seeing different results with?

Edit: In Firefox v7 I see all greyscale, and in Safari v5 I don't see the shadow effect at all. Your answer, most likely then, is simply that you're testing in a browser/version with incomplete support of the SVG filter specification.