Keep in mind that chameleons are meant to blend in, and different ones CAN get pretty dynamic colors. Those tend to be the larger Panther chameleons. But if you are expecting something like this:

You will be greatly disappointed.

Here is the kind that she is getting (female Jackson's chameleon):

It will mainly turn different shades of green, brown, yellow, and black. It can create spots and rough stripes, but that is about it.

The most colorful ones are Panthers (as mentioned above). Here is an example:

2-M60s, VP180, VP150, 4-QS8s, 4-M3s, SVS 20-39PCi, DIY Sub, 8-Shakers, JVC RS45