Completely impractical.
Another trick that should be possible is animated text. For instance, I should be able to move some of the letters continuously while leaving others still. This would be useful in describing
To make this happen, I had to use Photoshop, Poser, and a GIF-builder. Made two separate text images in Photoshop; put the sentence on one rectangle in Poser; set up a transparency map to form the hole; put the more!more!more! on a smaller 'slider' rectangle behind the first; animated them appropriately for 10 frames; rendered the frames; assembled in GIF-builder. After all that, the result is still unsatisfactory. I'd have to spend another 10 minutes to make it look better.
This should be an instantly available action.
Oddly enough, we were closer to this type of convenience before Windows! The VGA graphics system made it easy to specify font size and color and flashing within any text, with reliable results.
At the moment, SVG does some of these things with a reliable result, but there's no easy way to set up an SVG file. (And that's an EXTREME understatement!!!!) If something like SVG was officially required in the hardware of all video systems, we'd be in better shape.
The current icon shows Polistra using a Personal Equation Machine.