poor scrolling performance about deluminate

[abstiles]

Poor performance on sites with many images is, unfortunately, not surprising. When I invert the luminance on a page, I apply a color transformation to every pixel using the -webkit-filter CSS function. This is a significant load for the GPU, and it becomes much worse if Chrome is falling back to software rendering for some reason (if you have hardware acceleration disabled or if Chrome just doesn't like your GPU).

In addition to all of this, though, is that Chrome doesn't really let me exclude images from the inversion. In order to keep images normal, I actually have to apply the opposite transformation to every image I want to restore, and so Chrome ends up doing double the work on each and every image on the page.

And of course, on top of all of this is the fairly complex CSS rules I have to use to make sure stuff looks right. I'm not sure how much of a speed impact that causes (I'm sure it's much less than the luminance inversion), but it's probably non-negligible.

To try to answer your question, the "Invert All Images" mode does the least work of all the inversion modes, but if you actually care about the images on these problematic sites, that probably won't be too helpful. Also important is making sure hardware acceleration is enabled, but note that works best with higher end graphics cards. Lastly, I haven't explored all the settings in chrome://flags, so it may be that something in there might help.

If you can link me an example of a particularly image-heavy page that's giving you trouble, I might be able to tinker with some settings and see if I can find anything that could help. Also I'd love to know if you stumble upon some helpful settings yourself.

[abstiles]

Alright, I just spent some time trying out all the settings in chrome://flags that seemed relevant, and I was unable to find one that made an appreciable improvement when scrolling on a Google image search page.

If you have no luck either, my suggestion is to use an extension for tweaking the CSS on problematic sites. That sort of thing will always have better performance than a global inverter like Deluminate.

[boneskull]

@abstiles Thank you for looking into this for me. Can't recall which site it was; I apologize, I should have posted it.

This is a great extension; much better than Hacker Vision. I use this when a dark theme from userstyles.org cannot be found.