Source (link to git-repo or to original if based on someone elses unmodified work): https://github.com/rtlewis88/rtl88-Themes/tree/LAVA-Complete-Desktop
LAVA is a new GTK, xfwm4, openbox-3, GNOME-Shell, and Cinnamon- Dark Mode Theme with matching Icons and Folders.
The LAVA theme offers users five colors with two of the most trusted styles in the GTK ecosystem. LAVA users enjoy two styles based on either Arc or Numix design standards and aims to bring a warm, colorful, and elegant experience to your desktop. Black-on-black-on-black with one additional color just where you need it.
These are the matching icons and folders.
FOR DESKTOP THEME PRESS DEFAULT IMAGE ABOVE.
Three styles of Numix icons and folders have been carefully crafted to match the all of the desktop flavors, though can surely compliment other desktop themes that sport matching color hues.
Special thanks to the Numix team for their inspiration, expertise and contributions at: https://github.com/numixproject/numix-icon-theme. Some icons are based on Numix mimetypes icons created by the Numix Team - under GPL3.
Manual Installation Is Easy:
For themes: 1) Extract the "tar.xz" file into your "~/.themes/" folder - to install for current user only - or into the "/usr/share/themes/" folder - for the theme to be applied globally. 2) Use the GNOME Tweak Tool or an equivalent app to enable it for your desktop.
If installing manually, make sure to install the dependency: "Murrine theme engine" if you do not already have it; and update your GTK+packages if you have not.
For icons: 1) Extract the "tar.xz" file into your "~/.icons/" folder - to install for current user only - or into the "/usr/share/icons/" folder - for the icons and folders to be applied globally. 2) Use the GNOME Tweak Tool or an equivalent app to enable them for your desktop.
Logging out and then logging back in may be necessary on some operating systems to fully implement themes and icons.