It's working as intended. On styles that only have one color channel, chromas will only display one chroma channel. The Tropical Flower chroma has three channels:
- chroma 1: pattern / white / glossy version of your toon's first color channel
- chroma 2: white / glossy version of your toon's first color channel / pattern
- chroma 3: glossy version of your toon's first color channel / pattern / white
Briefs only have one color channel, so the only chroma that will show a pattern is chroma 1.
Here is my main toon, as she looks right now. Her leg style, like Briefs, only has one color channel.
Now, here she is, with each of the three Tropical Flowers chromas:
Now, here's what it looks like with a style that uses three color channels:
If you want the flowers to show up on the Briefs style, you'll need to use chroma 1. If you want to use chroma 2 or 3, you'll need to use a legs style that draws from the second or third color channel, rather than the first channel.
(if the pictures aren't showing up, click
here, to see them as an Imgur album.