Hi.
I just tried Affinity Designer a month ago, and I was hooked. And last week, I bought a license, not disappointed. I am migrating to the AD now. (Formerly I was a user of the big name vector software for years). Here is the feature request.
Since I often use AD for web design, I think it really needs the ability to set the character leading to a relative value (like 1.5x or 1.5em or 150%). So when we change the font size, the leading will also be adjusted.
Thanks.