Comment 45 for bug 248271

In the originals subframes are encoded with dispose_op=background and blend_op=over, despite being full frames 16x16. No need to waste CPU time clearing the background, and then doing proper blending.

My throbbers use dispose_op=none and blend_op=source, they are in grayscale, less pixels are half-transparent, more pixels are fully opaque or fully transparent.

But basically they look the same.

On my system I see less CPU usage, so it would be interesting to know what other people see.