Themes update: Resize OS_Badges icon to 128px, recompress *.png, sharper fonts, background fix, new Catalina4k theme, etc.
Themes Update (Part 1): Use alternative OS Badges for OS X El Capitan, Yosemite & Mavericks.
Clovernity theme update: New Disco Dingo background.
Update BeautyX theme v2.9: New background image.
Update Underground theme (v1.2): checkbox & radio_button, scrollbar, font, background, etc.
Fix typo in some Theme's Description.
Update Underground theme v1.1: Font fix, use alternate background image, remove icons transparency.
Add new dark 'Underground' Clover theme v1.0 (was SmoothDark), update ClassicalDark background image.