[lasem] TODO update.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit 189baa8745657a909c0de53ea1c333d0711ecdb9
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Sun Oct 14 20:11:31 2012 +0200

    TODO update.

 TODO |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/TODO b/TODO
index 1b9cedd..b1e3a6f 100644
--- a/TODO
+++ b/TODO
@@ -31,8 +31,11 @@ SVG
 - don't ignore an element with visibility != visible when clipping
 - don't include extents of an element with display == none
 - don't use push_group when filling + stroking shapes with group opacity < 1.0
+
 - add support of subregion for filter primitives
 - add support for arithmetic in feComposite
 - group opacity should happen after filter
+- add support for filter BackgroundImage and BackgroundAlpha 
+- fix SourceAlpha
 
 And many many more things to do...