Source (link to git-repo or to original if based on someone elses unmodified work): https://cgit.kde.org/scratch/kvermette/aether-icons.git
The Aether icon set requires Breeze icons to be installed. This icon set is still in development, and does not yet have icons for all common applications, settings, and devices.
The Aether icon set is based on the ever steadfast Breeze icon set, and the intention is to retain the monochrome action icons from Breeze while injecting a new set of full-colour icons to compliment them. The design makes use of scores, folds, bold colours, and a medium level of detail seeking clean and bold designs.
The vast majority of these icons are entirely original art, with a handful taking matching assets from Breeze and undergoing modification to fit the Aether aesthetic.
Minor update: Added Ktip, also fixed broken install folder