Implements \Drupal\system\Plugin\ImageToolkitInterface::settingsForm().
Overrides ImageToolkitInterface::settingsForm
public function settingsForm() {
$form['image_jpeg_quality'] = array(
'#type' => 'number',
'#title' => t('JPEG quality'),
'#description' => t('Define the image quality for JPEG manipulations. Ranges from 0 to 100. Higher values mean better image quality but bigger files.'),
'#min' => 0,
'#max' => 100,
'#default_value' => config('system.image.gd')
->get('jpeg_quality'),
'#field_suffix' => t('%'),
);
return $form;
}