Displaying distances from elements to block boundaries and to overlapping elements

We updated the distances displayed in the Flex block, and now you can see the distance from the border of one element to the other while overlaying. To see the distance of two overlaid elements to another element, you need to hold the Alt button (for Windows) or the Option button (for macOS). Moreover, you can see distances between elements and block boundaries by clicking on the element and holding the corresponding button. But also, if you move an element closer than 100 pixels to a block borderline, the distance to it will be displayed automatically.