The Registry Browser Java UI supports four different 'look and feel' themes that are useful in different circumstances:
You can select new theme from the 'Theme' submenu of the 'View' menu.

Figure 6.1 - Selecting a Theme
This is the default Java look and feel.
This is a look and feel that is useful when demonstrating the Registry Browser Java UI since it is based on the 'Metal' look and feel but has larger font sizes to make the text easier to read from a distance.

Figure 6.3 - 'Presentation' Theme
This is a high-contrast look and feel for those with poorer eyesight and those that prefer the uncluttered look.
This is a look and feel with both high-contrast and large font sizes for those with poor eyesight.