What customizable visual element can be added to a Smartsheet dashboard?

Widgets are the correct answer because they are the customizable visual elements specifically designed for use within Smartsheet dashboards. They allow users to display data in various formats, which can include charts, metrics, reports, and other dynamic elements tailored to visualize project data effectively.

Widgets enhance the usability of dashboards by allowing users to engage with data more interactively and can be customized to showcase the most relevant information for stakeholders at a glance.

While charts, tables, and forms can be related visual elements used within Smartsheet, they don't fit the framework of what is categorized as a dashboard component. Charts can be contained within widgets, but on their own, they do not encompass the full range of dashboard functionalities that widgets provide. Similarly, tables and forms serve different purposes within Smartsheet, focusing on data collection and organization rather than visualization within a dashboard context.