What is the Ad Brain, and how do I control how my ads look and read?
You'll find the Ad Brain ("Reklamní mozek") in Profile ("Profil"). It contains the concepts the app uses to put together ad graphics, and the templates within those concepts. Turn off any concept or template you don't like. New ads will then be created only from the ones that are switched on.
For a new ad, you can pick a specific template under Advanced settings ("Pokročilé nastavení").
Copy styles determine how the ad text is written. Each one has a description. You can turn a style off or add your own with an instruction for the AI, such as "short copy, three sentences max, a headline and a call to action". In practice, short copy that opens with a question works best, for example "Thinking about selling your apartment in Prague?", followed by the offer and a call to action.
Graphic colors come from the brand colors in your Profile. Some combinations don't look good in the graphics. If a campaign isn't catching on, try different colors and new ads.
Changes in the Ad Brain apply to new ads. Edit finished ads with the pencil icon in the campaign detail.

