Regarding the general appearance of the workbench you can set the following preferences:
Here you can specify whether you want tabs for stacked editors to appear at top or bottom.
Note: This setting requires a restart of the application.
Here you can specify whether you want tabs for stacked views to appear at top or bottom.
Note: This setting requires a restart of the application.
Here you can specify the location of the perspective switcher bar.
Here you can specify whether or not labels should be shown in the perspective bar next to the icons.
Here you can specify whether or not simple square tabs should be used in place of curved ones.
Here you can enable/disable the feature where views animate to their location when closed or opened.