I tried to find a tool in "inspector" but couldn't...I just want to change a JPEG file from color to black/white effect. I know in Powerpoint 2011, I can simply click on the image and there will be several image effect selections on the ribbon. I couldn't find the same feature on Keynote 09. Anybody can help me if I can change the color tone or gamma on a picture in Keynote 09, or I need to use other pictures editing software like photoshop to do it? Thanks.