Power-up Placker

[Deleted user]

Hello, I am new at Trello and tried to find a Power-up, do make all my cards better visible and wanted to try Placker Power-up. But I have seen before sign-in, that is not for free and so I have not completed registry. But Placker is still shown as activated on my work area. How do I remove? 

[Carolina Lopez]

Hi Sonja, welcome to the Atlassian Community!

To disable the Power-Up, open the board menu on the board where it's enabled, click Power-Ups, search for the Power-Up in question, and click Settings. From there, you'll be able to remove personal settings and disable it.
Next, go to https://trello.com/my/account, and under the Applications section, select Revoke for any entries related to the Placker Power-Up.

You can find more details about Power-Ups here:
Handling Power-Ups