Allows administrators to customize the appearance of watermarks applied by Data Loss Prevention (DLP) rules. This includes setting its filling/oultine opacity, and defining its font size.
If this policy or some values is not set, Chrome will use its default watermark behavior.
The default values are: fill opacity at 4, outline opacity at 6, and font size at 24.
The 'Fill Opacity' is a percentage from 0 (fully transparent) to 100 (fully opaque).
The 'Outline Opacity' is a percentage from 0 (fully transparent) to 100 (fully opaque).
The 'FontSize' is specified in points .