Embeds full-size images instead of thumbnails from various image hosting sites.
Works for rutracker and pornolab.

If iframes are blocked by uBlock, add the following into "my rules":

pornolab.net * 3p-frame allow
rutracker.org * 3p-frame allow

It's a good idea to block third-party scripts on these sites:

pornolab.net * 3p-script block
pornolab.net dynspt.com * block
rutracker.org * 3p-script block
rutracker.org rutracker.cc * noop

Also need to install https://github.com/Owyn/HandyImage for skipping images hosters' ads.