The document windows can be displayed either with or without titlebar. To change the current display mode, go to the menu View > Show titlebar or Hide titlebar depending on which window display is currently active. Then all open windows change their appearance.
In the [Preferences.htm:Preferences], the font and size for the cell contents can be adapted to your own needs.
Note: The settings apply to both CSV- and Markup-Views.
Note: The settings are treated separately for the light- as well as the dark-window mode.
The document windows can be displayed in either light or dark.
In macOS Mojave, the corresponding appearance is automatic and is dictated by the general user settings.
Users of a macOS version before Mojave can switch the current display mode by clicking on the menu item Display > Light User Interface or Display > Dark User Interface in the main menu, depending on which window display is currently active. As a result, all open windows change their appearance.