I'm not sure how many other designers out are needing this, but I would like to suggest the addition of a few "Live" effects added to Affinity Designer.
1: Vector Halftones
Use for RGB / CMYK / B&W with the ability to change dot sizes on the fly, as well as some way to be added to gradients.
2: Stipple
A simple way to add stippling to design work which could help accent textures. Changing dot size, texture, and such would help create unique patterns.
3: Randomization
The ability to edit, live, a patterns / objects colours, scale, position, and rotation could help make items more unique.
I know this is asking a lot.
I figured I'd put it out there as these are not only things that I would benefit greatly from, but certain others would as well.