Procedure

1. Open the Preferences dialog.
   • On macOS, select Apple → Preferences → Settings on the menu or press [Cmd + ,].
   • On Windows or Linux main menu, select Settings → Preferences.
   The Preferences dialog appears:

   
2. Use the Default Source Language drop-down to select the language your source documents are written in by default.
3. Use the Default Target Language drop-down to select the language into which you normally translate.
4. Use the Match Threshold (%) box to enter the minimum similarity threshold that the Translation Memory engine should use to retrieve matches. Selecting values below 50 may result in low-quality matches being retrieved.
5. Use the Theme drop-down to control the application's default appearance.
   • Select System Default to let your Operating System control the default text/background color combination (this option is not supported in some Linux distributions).
   • Select Dark to work with light text on dark background.
   • Select Light to work with dark text on light grey background.
   • Select High Contrast for a dark theme with enhanced contrast.
6. Use the Font Size drop-down to select the default size of the text used in the translation panel.
7. Use the Rows per Page box to select the number of segment rows per page displayed when opening a project. Minimum value: 100; maximum: 2000; default: 500.
8. Use the Default User Name text box to enter the value used in creationid and changeid attributes when exporting memories as TMX. The default value is set to the computer's username.
9. Click on the Save Preferences button to save your changes.