Here is a much better rule: Make it look like everything else.
E.g. making a bad looking Qt App takes a lot of effort. If you use the things everyone else is using, the same frameworks, the same layouts and standard components, then users will be immediately familiar and know how your interface works. No, you aren't special, no you do not need to reinvent UX with your SaaS product.
E.g. making a bad looking Qt App takes a lot of effort. If you use the things everyone else is using, the same frameworks, the same layouts and standard components, then users will be immediately familiar and know how your interface works. No, you aren't special, no you do not need to reinvent UX with your SaaS product.