Color Presets

<?php

  function grizzly_colors($presets) {

      $grizPresets = array(
        'color-presets'  => array(
            'primary'    => '#672965',
            'primary-90' => '#6E4B69',
            'primary-80' => '#8D7A8A',
            'primary-70' => '#B3A7AD',
            'grey'       => '#8B8D8D',
            'light-grey' => '#A9A8A9',
            'secondary'  => '#F5DB73',
            'tertiary'   => '#0094C7',
            'accent'     => '#BABD2D'
        )  
      );

      $presets = array_merge_recursive($presets, $grizPresets);

      return $presets;
  }

  add_filter( 'fl_builder_color_presets', __NAMESPACE__ . '\\grizzly_colors', 10, 2 );

?>

Does this still work for you? I can't seem to get it to work at all for whatever reason...