Perceiving Dark Mode Colour Schemes in Choropleth Maps

Dark mode is a design option that uses a dark background with light-coloured text and graphic elements. It is becoming increasingly popular in various applications - also in the cartographic field, as Google Maps, Apple Maps or various web
mapping libraries support this option.
The advantages of dark mode are manifold - but also controversial and in some cases not yet verified. On the one hand, dark mode reduces the amount of blue light emitted by screens, thereby reducing eye strain. With OLED screens in
particular, dark mode can extend battery life as the pixels emit their own light and only consume power when displaying bright colours. Finally, many people prefer the aesthetics of the dark mode.