Custom fields from ThemeWare® for property groups.
Switch via the main navigation to the "Properties" management of your shop ("Catalogues" => "Properties")
Choose the property group you want to edit
Scroll to the block "Custom fields"
Select the tab (=set) for your theme (e.g. "Properties (ThemeWare® Modern Pro)")
Make the desired changes
Save your changes
You have now edited property custom fields.
The individual custom fields:
Tip: If the navigation bar with the tabs (=sets) is full, you can scroll it using the arrows (left and right).

With this custom field on the property group you can display the options of the group as "Product symbols" on the product page. Only options with an image are displayed – you can assign the image directly to the respective option. The group will still appear in the properties table as usual.
Tip: Upload the symbols as SVG or PNG in your desired colour – they are not recoloured.
Note: You can enable/disable the "Product symbols" in the theme configuration.
You can find the "Show as product symbol" custom field in the respective property group:
"Catalogues" ⇒ "Properties" ⇒ choose the property group ⇒ Block "Custom fields"
Type: Select ("no" / "yes")
Technical name: twt_{theme}_{edition}_custom_field__property_group__product_symbols
