Thing 6 Soup on sidebar

Apparently have need to do things out of sequence.

Used ImageChef. No idea these image generators existed. This is why 23 Things is good. Fun. Fast. Easy.

Have now deleted avatar!

I discovered that the background of this blog's template is composed of several .gif images. I found what I want to edit. However, I do not know if a .gif can be edited for color and if so, what software might work to do so?? Any ideas out there?