Layout metrics?

[Richmond Mathewson]

https://developer.apple.com/macos/human-interface-guidelines/buttons/image-buttons/

"*Include about 10 pixels of padding between your image edges and the 
button edges.* Even though the edges of an image button aren’t visible, 
they still define the clickable area for the button. Padding ensures 
that a user’s click registers even when it misses the image slightly.

*Allow adequate spacing between image buttons and other controls.* 
Provide enough of a buffer that the user won’t inadvertently click the 
button’s hidden frame when attempting to click another control."

Richmond.

On 24/3/2018 5:54 pm, Richard Gaskin via use-livecode wrote:
> In the olden days of OS vendors' Human Interface Guidelines they used 
> to specify things like recommended spacing between controls.
>
> I can find no metrics guidelines in Apple's latest HIG.
>
> Did I miss it?
>