I would like to have a coloured box behind each road number on my map, matching the colour of the road it relates to and scaled to the length of the road number.
I understand this could be done with custom SVG symbols but it seems like it would be a time consuming process.
The road numbers in question are labels attached to points. Could I then work a solution where a box is created around that point as some of kind of data representation, basing the width on the string length of the road number?
EDIT: I think I may have found a way to do this with Ellipse Marker symbols. If I work it out I will post an answer.