This button opens a menu where you can choose the marker
shape you wish to use. The available shapes are:
Background... / Foreground...
Click on this button to open a platform dependant dialog
window where you can select a colour (pre-defined or
customized) that will be used to draw the corresponding
marker.
The bookmarks are
used in Text, Binary and Folders Comparisons.
The bookmarks are
used in Text, Binary and Folders Comparisons.