How can users create custom icons in Cvent Diagramming?

Users can create custom icons in Cvent Diagramming by uploading and placing them onto the diagram. This functionality allows for greater creativity and personalization, enabling users to incorporate specific iconography that may not be available through the standard set of pre-defined icons. By uploading their own images, users can ensure that the icons are relevant to their specific event or venue needs, creating a more tailored and effective visual representation in their diagrams.

In contrast, the other options do not provide the same flexibility. Choosing from a limited set of pre-defined icons restricts creativity and doesn’t offer the opportunity to customize as needed. Painting icons directly on the screen could imply a level of detail and precision that is not typically supported within the Cvent platform's diagramming tools. Finally, while using third-party graphic software to create icons could be useful, it does not directly integrate those icons into Cvent Diagramming without the ability to upload them. Thus, uploading and placing custom icons provides the most direct and effective way to enhance the diagramming experience.