1.6.0 user's customizations (for colors) are written in a custom css file. This file is automatically generated when you modify and customize the widget.
This file is located in
If you cannot see your customizations (example, you changed the color for header and it is still the default color), please follow these steps:
Clear your browser cache and cookies
Clear any cache if you use any caching plugin (ex: W3 Total Cache, Super Cache, WP Rocket)
advanced-business-hours/css/ directory has write permission so the custom style is written
Check to see if the custom css file exist by going to this location:
change the website address to your own website and copy/paste the link into browser's address bar
Alternatively, you can load the customization as inline style in the header.
If you still cannot see your customizations, please contact the support team.