I saw you mentioned a pastel theme - that isn't really a theme, just a colour scheme. If you like blue, for example, you can have blue flowers (and maybe villagers as well).
Most people don't have a theme, you just hear about people with themes more often because it's something worth mentioning, while somebody without a theme won't just stand up and say: "I have no theme." If you have a theme, you're likely to mention it in a lot of threads about towns because it explains your town situation.
I wouldn't say you need a theme, I think your town can be less accessible to some people if you do, actually. (Say you don't like a series; then a town about those series won't be very interesting to you) About colour schemes (mainly for flowers, but also trees and bushes), I think it can be useful if you find it hard to think of new combinations for each area. By choosing only four or less colours, it can be easier to decorate your town because you know what you're going to use. I think people have those 'themes' just because it's easier and you've got less to decide about.
Most people don't have a theme, you just hear about people with themes more often because it's something worth mentioning, while somebody without a theme won't just stand up and say: "I have no theme." If you have a theme, you're likely to mention it in a lot of threads about towns because it explains your town situation.
I wouldn't say you need a theme, I think your town can be less accessible to some people if you do, actually. (Say you don't like a series; then a town about those series won't be very interesting to you) About colour schemes (mainly for flowers, but also trees and bushes), I think it can be useful if you find it hard to think of new combinations for each area. By choosing only four or less colours, it can be easier to decorate your town because you know what you're going to use. I think people have those 'themes' just because it's easier and you've got less to decide about.
