tailwind presets' custom theme was treated as unknown classes

[zcqno1]

Describe the bug
I make my custom theme as a tailwind preset and require it in the tailwind.config.js. It results that the custom theme(here is bg-primary ) was treated as unknown class and was placed at the start by default.

config like:

// preset.js
module.exports = {
  theme: {
    colors: {
      primary: '#206EF7'
    }
  }
}

// tailwind.config.js
module.exports = {
  presets: [require('./preset.js')],
  ...
}

While just placing the custom theme in tailwind.config.js, it works as expected.

config like:

// tailwind.config.js
module.exports = {
  theme: {
    colors: {
      primary: '#206EF7'
    }
  }
  ...
}

Expected behavior
The custom theme's classes should be recognized and sorted as known classes.

Versions:

• prettier-plugin-tailwind version: 2.2.10
• Operating system: wsl
• NPM/Yarn version: yarn v1.x