2. After the confirmation message that the theme is successfully installed, open firefox. Change colorscheme by **`Open Menu > Customize > Change Colorscheme`**.
1.**I only have Archlinux, so I cannot guarantee that it will work on Windows10 and macOS without a problem. A feedback and PR is absolutely welcome!**
1.**The theme does not provide the blur effect!** Make sure you have a compositor with blur support running! KDE Plasma, macOS, and Windows 10 have this by default, but you need to enable it! If you're using linux, use tryone144's [feature/dual_kawase](https://github.com/tryone144/picom/tree/feature/dual_kawase) branch of picom. It includes the dual kawase shader.
### If you're using Plasma and there's no blur effect,
1. Enable the blur in your compositor. Go to `System Settings > Desktop Effects > Enable Blur`. Note that this will not enable the blur effect on all applications.
2. Enable the blur effect on all applications by installing a KWin script called [Force Blur](https://store.kde.org/p/1294604/).
3. Go to `System Settings > KWin Scripts > Enable Force Blur`.