Which component of ArcGIS Pro allows users to change the appearance of a layer?

The Symbology Pane in ArcGIS Pro is specifically designed for altering the visual representation of a layer. This component allows users to apply various symbols, colors, and styles to features within a layer, enabling them to effectively convey information through visual means. Users can access a range of predefined symbology options or create custom symbols to match their project needs, enhancing the communication of spatial data's meaning.

While the Layer Properties option encompasses a broad range of settings for a layer, including its source, extent, and data management capabilities, the Symbology Pane focuses exclusively on the visual aspect. The Style Editor is a tool for creating and managing styles but is not primarily focused on changing the appearance of a specific layer. The Appearance Tab is often part of the Layer Properties and provides shortcuts to some visual settings, but it doesn’t offer the comprehensive capability and interface of the Symbology Pane when it comes to designing the layer’s visual characteristics.