Hi! I'm absolutely delighted by Affinity Designer from the first time I purchased and opened it, so first of all I'd like to thank all the devs for the great work they're doing!
Now, I have a feature request, there's a little tool that I use every so often in Illustrator called the colorize tool. If I create some vector art in a color scheme (for instance in shades of blue and red) but then want to use it in a different background and would like it to be in different colors, I could go one by one to all the elements but if there are many it's tedious and time consuming. The colorize tool lets me change all colours at one using a color wheel that maintains basically the relation of luminance of each shade but changing the colors. Now I'm working with the color superposition tool to achieve a basic similar result, but a color changing tool like the colorize tool in illustrator would be more precise and versatile.
Thanks and keep the great work!
J.-