To add the category follow the steps given below:
Go to "Category".
Click on "Add" option.
In Category, there are three Levels- Level 1, Level 2, and Level 3 which denote the main service, sub-service, and sub-sub service. After categorizing the category, you can add the acronym, start and end time, on which screen you want to display the category, and more.
Also, you can add the icon in the category by clicking on the setting option and upload the icon easily. Lastly, click on the save changes option.
To review the icons are correctly uploaded, you can open the ticket screen.