How do you get crowns in Royal Match?

Could you please explain to me the process of acquiring crowns in Royal Match? I'm quite intrigued by the game and have heard that crowns play a significant role in progressing through the various levels and unlocking new features. Are there specific tasks or achievements that need to be completed in order to earn them? Additionally, are there any tips or strategies that you could recommend to help me accumulate crowns more efficiently? I'm eager to learn more about this aspect of the game and how it can enhance my overall gameplay experience.