Board Thread:Support Requests - Getting Technical/@comment-25087748-20170522064740/@comment-1073922-20170522073620

You can do it with the property in CSS, which is supported by most browsers except (surprise) Internet Explorer.

You'll need to start with the original color image, apply  to it, then have the grayscale filter go back to 0% (full color) when you hover over the image. Here's a demo I created; I've added a transition so the effect is smoother when you hover over the image.