[AndrejM]

That is not what I meant, actually. I meant rendering a logo via some paint methods, where all the information the methods have is some text, color and style attributes, etc. Then the logo gets drawn on-the-fly by the user's browser. It could work for simple logo's, I believe.

[dhimes]

This is worth a try for a lot of reasons. If not for logos, then for buttons on your site. When I switched to painted buttons vs images in my downloadable desktop software, I (1) saved a lot of space on downloads, and (2) saved a TON of time whenever I wanted to add a new button or change the color scheme, or gradient, or shadow, etc. Re-creating each button (even just creating a new one) was a total pain in the ass compared to simply instantiating a new button or playing with the paint method.

I haven't tried it in html5 yet, but if I use buttons on the page I will definitely give this a shot.

[IgorPartola]

Yes, but everything you describe can be done with CSS as well: loading custom fonts, background colors, even gradients.