Support for custom selectors

[Ryongyon]

require('tailwindcss-themer')({
      defaultTheme: {
        extend: {
          colors: {
            primary: 'red'
          }
        }
      },
      themes: [
        {
          // Apply one of these selectors(?) to an element and all of its children to use that theme.
          // `<div class="dark">`, `<div data-theme="dark">`, `<div dark>`
          selectors: ['.dark', '[data-theme="dark"]', '[dark]', ],
          extend: {
            colors: {
              primary: 'blue'
            }
          }
        }
     ]
})

[RyanClementsHax]

This is definitely on my list of things to consider adding. Just haven't prioritized the time to add it in yet. (Also sorry for the late response)

[RyanClementsHax]

I released this in the most recent version of the plugin :)