The black theme of incognito mode cannot be changed
Con rispostaWhenever Swiftkey is in incognito mode, it will report an error when trying to change the theme (to a more readable one. Dark grey isn't actually super readable on a black background).
I've made a screen recording of what is happening. You can watch it here: https://1drv.ms/v/s!AgXAimxOcew95LJWMjdN1o40WHsqZw?e=vuF04b
In summary, Microsoft confesses to have made a mistake, but does not say, when it intends to fix it.
Yes, it is the most recent version of the app: 7.9.7.11
Hello, thank you for reaching out. Sorry for the trouble.
It is an expected behavior on the SwiftKey keyboard when you try to change the "Theme" in the Incognito Mode(having Incognito Mode enabled). We've passed your feedback on to the team so that we can keep it in mind as we continue to improve Microsoft SwiftKey.
We apologize for any inconvenience this may have caused, and we thank you for your support.