I just registered on this forum, solely to complain about the new GUI. I have used CCleaner for years, so why the sudden "new look" I do not understand. Appears to be change for change's sake. A disease no doubt contracted from Microsoft.
The new GUI is harder to read, looks butt-ugly in Windows-7. It will look just as bad in the new Windows 10.
The "washed-out" look, flat icons, smaller(?) font, fainter boxes and bright-white title-bar all make it much, much harder on the eyes. Maybe a hi-res thing? (1920x1080), or maybe an age thing (65yrs - Hey Piriform, the population is aging!).
Please - either revert, or provide a "classic skin" option.