The SVN preferences panel is opened from menu → +SVN and it is the place where the user preferences for the embedded SVN client tool are configured. More preferences that configure how the embedded SVN client tool works can be set in the global files called 'config' and 'servers', that is the files with parameters that act as defaults applied to all the SVN client tools that are used by the same user on his login account on the computer. These files can be opened for editing with the two edit actions available in the SVN client tool on the Global Runtime Configuration submenu of the Options menu.
Working copy administrative directory - allows you to customize the directory name where the svn entries are kept for each directory in the working copy.
Automatically upgrade working copies to the client's version - if this option is checked and a working copy stored locally on disk using an old SVN format (for example the SVN 1.3 one) is loaded in the Working Copy view then the working copy is automatically converted by Syncro SVN Client to the most recent SVN format. If the option is not checked a confirmation dialog will be displayed when such a working copy is loaded in the Working Copy view.
Application global ignores - allows setting file patterns that may include the wildcard * and ? for unversioned files and folders that must be ignored when displaying the working copy resources in the Working Copy view.
SSH - here you can specify the command line for an external SSH client which will be used when connecting to a SVN+SSH repository. Absolute paths are recommended for the SSH client executable and the file paths given as arguments(if any). Depending on the SSH client used and your SSH server configuration you may need to specify in the command line the username and/or privatekey/passphrase. Here you can also choose if the default SVN user will be used(the same as the SSH client user) or you should be prompted for a user whenever SVN authentication is required.
Compare - allows you to specify if you want to see pseudo-conflicts in the Compare view. You can also change the maximum number of differences allowed in the view and to specify an external application to be launched for compare operations in the following cases: when two history revisions are compared, when the working copy file is compared with a history revision, when a conflict is edited. There is also available a link to quickly customize the used compare colors.
Results Console - here you can specify the maximum number of lines displayed in the Console View and if the Console view should come to the foreground when there is some output that is displayed in this view.
Annotations View - here you can set the color used for highlighting in the editor panel all the changes contributed to a resource by the revision selected in the Annotations view.