Sony DCR-TRV39 - Manual (Page 191)

Brush color
Indicates the currently selected brush color.
Color Select button.
Click to display the Color palette and choose a brush color.
Transparency
Indicates the currently defined transparency.
Transparency slider
Drag to define transparency.
Brush type indicator
Shows currently selected brush type and size.
Brush Type Selector button
Click to display available brush types and sizes. (See below.)
There are slight differences in the brush types available in Windows and Macintosh.
Pen