After using the same small button icons for years, some since 15 years ago, a new set of button is now available.
Thanks to the work of Mattia Verga based on the KDE Breeze theme we can now benefit of much cleaner, intuitive and homogeneous buttons.
Large size button available from the Toolbar editor are now of better quality.
A version adapted to dark theme is also available and selected automatically.
This is now available with the beta version 4.1.
I hope you also like them and quickly adapt to the new icons.