You may download this button and remove its background or you may download the zip file that contains the .PSD version with no background. 

If you want to play with swapping color tables, here's a color table to play with. Download MOONLIGHT.ZIP, which contains moonlight.act, a Photoshop color lookup table. 

If you are still using Photoshop 5.0, here's what the Save as JPEG dialog box looks like:

Here's the Export GIF dialog box:

You can also change colors in a Color Table. Here's a palette (firstpal.act) for you to play with. Download this as firstpal.zip.

Crocus.jpg