Bond highlighting - placement and width

Bond highlighting is useful but the positioning can be sub-optimal for multiple bonds (see picture - top row). Presumably it is related to the central bond but if the double bond is not centred (left or right setting and not >c< when cursor over bond) then the second bond is almost lost/outside the highlighting.

There is also a less important issue concerningthe relationship between double bond spacing and highlight width as shown at the bottom of the picture. The highlighting can become very large (but then the double bond also looks hideous so I'm not sure why anyone would use the proportional setting).