Here's what I want to do: Design a graphic with a transparent background, such that when I place the graphic on a website, the website's own background will show through in the graphic's background.
Here's how I tried to do it: Designed the graphic, selected the color White, turned transparency all the way down to zero, used the paint can to fill the background with that "transparent white" color.
Here was the result: A white background, not a transparent background.
Here was something unexpected: Though I used the paint can to fill with the transparent version of the white color, when I used the dropper to pick up that color from the image, it picked up a completely opaque version. So for example, I set transparency to zero, use paint can, then immediately use dropper, and watch in frustration as I see the transparency setting jump right back up to 255 instead of 0 when I pick up the color with the dropper.
Here's my question: Is it possible to do what I want to do, and if so, what am I doing wrong, and what should I be doing?
