Use the Formatting Toolbar.
Use the Property Grid, where all appearance-related properties are located under the Appearance category.
Note that the appearance settings of a band are applied to all controls contained within it.
When it's required to apply styles in bulk, we recommend using common style templates, which also can be stored in an external style sheet file, and applied to multiple reports. In addition, this allows you specify separate odd/even styles, to improve your reports' readability. Another noteworthy option, is the capability to conditionally change the appearance of report elements based on a certain logical expression (e.g. if a control's value satisfies some rule). For more information, refer to Styles and Conditional Formatting in Reports.