src/fields/Iconpicker.php
private function getIcons()
    {
        if (!empty($this->iconFont)) {
            $fonts = $this->getFonts();
            if (!empty($fonts) && isset($fonts[$this->iconFont])) {
                $font = Font::load($fonts[$this->iconFont]['path']);
                $font->parse();

                if ($font !== null) {
                    return $font->getUnicodeCharMap();
                }
            }
        }

        return null;
    }
private function getIcons()
    {
        if (!empty($this->iconFont)) {
            $fonts = $this->getFonts();
            if (!empty($fonts) && isset($fonts[$this->iconFont])) {
                $font = Font::load($fonts[$this->iconFont]['path']);
                $font->parse();

                if ($font !== null) {
                    return $font->getUnicodeCharMap();
                }
            }
        }

        return null;
    }
Load a font and get all unicode characters available in that font.

@return array|null