Prismas is my collection of opaque themes, light and dark, available in different color flavors: blue, gray, green, orange, purple, pink, and red.
Here's some more screenshots... [link]
Bugs to report? Please let me know!
GTK 3 themes that will go well:
Linux Mint [link]
Icon Themes that will go well:
Just to name a few...
Here's a link to the wallpaper in the preview... [link]