Since this e-reader runs on Android, the download from Weltbild should certainly work.
It runs various apps that nan can download, e.g. Onleihe, PocketBooks, Tolino, etc.
Colours are also displayed quite well and in note mode they are also appealing. But of course it can't be compared with the colours on an iPad.
In the integrated note app, there are 12 colours and 4 greyscales to choose from.
I previously had the Nova 2 (black and white).
I had to turn on less backlight because the background was a lot brighter.
But I am very happy with the device and would buy it again.