Theme Gray-X is a must have a theme from Xiaomi devices which comes with elegant design and attractive outlook.
The theme is a popular one among the Mi fans and it supports both MIUI 8 and MIUI 9. So there is no issue with the platform.
Note: After downloading, go to theme manager and import it. If it is not working then go to Play Store and download MIUI Theme Editor. Using MIUI Theme Editor you can easily apply the theme.
Theme Gray-X feature gray inspired design and it carries iOS like fonts. This will enhance the beauty of your phone.
Here are some live previews of Theme Gray-X: