Namespace ITheme

Defines and manages themes associated to a specific document or spreadsheet.

These themes are saved and shared with the document, ensuring a consistent look and feel across different views or users.

ITheme focuses on styling the content within the document itself, such as:

• Applying schema colors (Accent1, Accent2, etc.) to elements like charts, shapes, and tables.
• Controlling font styles and colors used within the document.
• Customizing other visual aspects specific to the document's content.

This is distinct from an AppTheme, which controls the styling of the application's user interface (UI) itself, such as the toolbar, menus, and overall color scheme, and can be specific to the application or individual user preferences.