1) Go to Window -> Preferences -> User Interface -> Appearance.
2) Select from the following available themes:
Light
Dark
Classic
Note: To fully apply the selected theme, you must restart DBeaver.
Managing the High Contrast theme in Windows
Windows users have the additional option of using High Contrast themes. This section provides details on how DBeaver interacts with these themes.
Activation of High Contrast theme
When the High Contrast theme is activated in Windows, DBeaver automatically switches its theme to High Contrast. If DBeaver is already running when the system theme changes, a notification will appear suggesting a restart for the theme to apply correctly.
Deactivation of High Contrast theme
If you deactivate the High Contrast theme in Windows, it will automatically be removed from DBeaver’s list of available themes after the restart.