Thank you, @LeslieLlama, for trying the game and for your feedback.
Yes, the mist - based on all the feedback received so far, I can see that that improving the balance for the mist speed and frequency of colour patches will be a challenge in further development. And maybe the game should be named something like "Mistic adventure" 🤭.... or (quoting certain Heinlein) "Never argue with the weather".