FreeHand Properties, [Details] Tab (Viewer)

FreeHand Annotation Properties appear when you select the FreeHand annotation and then select [Properties] in the [Edit] menu.

[Show color strength for transparent color]

When the [Transparent] check box is selected in the [Color and line] tab, a line is drawn in a dark color if the cursor is moved slowly, and a line is drawn in a light color if the cursor is moved fast.
 
For the following tabs in the FreeHand Annotation Properties dialog box, refer to the topics in the respective link destinations. There are no customizable items in the [Font] tab.