Revisiting the idea of doing a Beeline reader plugin.
For those not familiar:
http://www.beelinereader.com/
Turns out taking a pdf and trying to do this with the text is not really simple. With a ebook it might be another story... but I'm interested in doing this on PDFs (whitepapers and such that I have to read on a daily basis).
My next idea is to completely overlay a full page color gradient. The gradient would ignore anything white (so the page wouldn't be colored). For anything black/near-black it would alpha-blend this gradient. If the vertical change from red to blue in the gradient is approximately equal to the text size on the page, this should give a pretty accurate approximation of the beeline reader effect.
Anyone know of any plugins that are doing some kind of overlay? THat would be a good starting point.