Affinity Publisher has a dark User Interface (UI) by default. This makes it easier to accurately view and edit the colors in your designs. However, you can swap the UI interface from dark to light (and vice versa), adjust the background grayscale or the overall Gamma for contrast changes.
To change the UI from dark to light (or vice versa):
Choose Affinity Publisher>Preferences.
Choose Edit>Preferences.
Click the User Interface label.
For UI Style, choose Dark, Light, or Default OS.
To change the UI background or Gamma level:
Choose Affinity Publisher>Preferences.
Choose Edit>Preferences.
Click the User Interface label.
Drag the sliders to set the Background Grey level, Artboard Background Grey level and/or UI Gamma level.
