Ankoralaine is a icon theme that combines the icons from Antu, Kora and La Capitaine. The aim of this icon theme is to provide a more visually appealing set of icons for Plasma.
Those 3 icon themes are among the best out there in my opinion. But there was always something in then that would bother me, either some icons that didn't fit my taste, or one that was missing, etc. That's why I picked the icons that I liked best from each one and merged into this theme
You can install Ankoralaine icon theme by following these steps:
Open a terminal window and type:
cd ~/.local/share/icons
git clone https://github.com/LDrawe/Ankoralaine.git
./configure
Open the System Settings app in KDE Plasma. Go to Icons in the Appearance section. Click on the Install button and select the extracted Ankoralaine folder. Once installed, select the Ankoralaine icon theme from the list of available icon themes.
Ankoralaine is a combination of three different icon themes . The icons were sourced from their respective GitHub repositories and customized to create this theme.