Is there a way to resize images when they appear in the info panel on builder? When we add an image it's too small to be useful.
Images that uploaded via fields on an element cannot be resized at this time. However, if your goal is to provide information/instruction about a view, you can use the information panel in the view options:
Images in the information panel will attempt to size to the width of the panel or two the native size of the image, whichever is smaller.