Replacing thumbnails and using Beautify
Mastermind members can replace the thumbnails of web page and product cards in your mind.
To do so, simply open the card and click on the Replace Screenshot button. You'll then be prompted to pick an image from your file picker.
Product cards and Beautify (beta)
Product cards allow you to also drag and drop an image onto the current screenshot to open it. Open the card first, then drag and drop any image to replace the current screenshot.

You can also prompt mymind to clean up the thumbnail by hovering on the card and clicking on the Beautify button (in beta). mymind will then clean up the screenshot, removing the background and unnecessary "fluff." If a product card already looks lovely, then there's no need for it.
You can undo the Beautify by clicking the button again, or by uploading a custom image yourself.