Dark Mode
We do not provide a prop that will directly enable dark mode, but with the ability to adjust theme, you can easily achieve it using theme prop.
<EmojiPicker
  onEmojiSelected={handlePick}
  open={isModalOpen}
  onClose={() => setIsModalOpen(false)}
  theme={{
    backdrop: '#16161888',
    knob: '#766dfc',
    container: '#282829',
    header: '#fff',
    skinTonesContainer: '#252427',
    category: {
      icon: '#766dfc',
      iconActive: '#fff',
      container: '#252427',
      containerActive: '#766dfc',
    },
  }}
/>
The effect of the above code.

Above, the theme property is displayed with the styles required for the basic version of the EmojiPicker. Below, you'll find the theme property showcasing all available styles.
<EmojiPicker
  onEmojiSelected={handlePick}
  open={isModalOpen}
  onClose={() => setIsModalOpen(false)}
  theme={{
    backdrop: '#16161888',
    knob: '#766dfc',
    container: '#282829',
    header: '#fff',
    skinTonesContainer: '#252427',
    category: {
      icon: '#766dfc',
      iconActive: '#fff',
      container: '#252427',
      containerActive: '#766dfc',
    },
    customButton: {
      icon: '#766dfc',
      iconPressed: '#fff',
      background: '#252427',
      backgroundPressed: '#766dfc',
    },
    search: {
      text: '#fff',
      placeholder: '#ffffff2c',
      icon: '#fff',
      background: '#00000011',
    },
  }}
/>