divstivs

Hullo I was wondering is there a way in Affinity Designer to export CSS classes for different SVG elements? I'm editing a political map and different regions are coloured according to voting. It would be handy to have each similar region under the same class when I come to add interactivity... I mean, I got around this by opening the SVG in Illustrator and exporting once again with <Style Elements>. But it would be handy if there's a way to do it in Designer.