Since version 5.13.0 the blur effect is integrated into the Plasma desktop. Follow this guide to activate the blur effect for your terminal.
![](https://nocin.eu/wp-content/uploads/2019/11/image-6.png)
To activate the blur effect for other windows (like the dolphin file manager), use Force Blur.
Or use Kvantum (Qt theme engine) with a theme that supports blur, i. e. Materia Blur.
![](https://nocin.eu/wp-content/uploads/2019/11/image-7.png)