Please check this article to see category based custom point styles :

This panel is made for you to determine the map icon for listing categories. You can determine a map point in different appearance and size for each listing category. You can also upload your map icon images prepared before by using the Custom Image option. Size of images to be uploaded here is completely up to your choice. If you have activated Options Panel > Point Settings > Retina Point Icons section, please use twice the size of normal image size. This is important as the retina feature will reduce the size of images by 50%.

If you want to use the pre-defined settings, you should save the changes after determining size, icon, and color.

The uncategorized section includes map point settings to be used as Default. The points which are uncategorized or for which icon settings are not performed will use these settings.

Please watch the educational video below.