The Syncro SVN Client preferences are:
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.
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 when two history revisions are compared or when the working copy file is compared with a history revision. 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.
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.