Cool clocks is a substratum theme which helps you to change the appearance of your clock widget.
The widget will even change its color according to your accent.
* This app will only work on devices with root access + substratum or substratum + andromeda installed.
* Theme supports Oreo(8.x) and Nougat(7.x) devices.
* Theme won't work on Samsung devices.
* This theme supports widgets of Stock AOSP clock, Google clock, Oxygen OS clock.
* This theme can only change the appearance of Analog clock widget.
* Select the clock you want to theme from the options.
* Click "Build&Install" from the options.
Clock update/change Procedure:
* Uninstall the previously installed overlays.
* Select new clock from the available set.
* Click on 'build and enable'.
* Reboot after installing the overlay.
If you face any issues with this theme, don't star this issue on Play Store, please let me know.