Hello! How are you?
I am using Toolset for the first time on a new website and I have a question: How can I put a background image in the grid cell? I did it with custom css, but I want to know if it's possible to do it from the same block editor.
Unfortunately not with this block. You should be able to do it with one of the gutenburg default blocks but our Toolset Grid block doesn't allow you to set the background behind it.
You can use the Gutenburg's cover block to add the image as a background and then within the cover block you can then add the grid block. Essentially you're layering the 2 blocks onto each other to achieve your goal.