shimmie2/ext/image/config.php

<?php declare(strict_types=1);

abstract class ImageConfig
{
    const THUMB_ENGINE =     'thumb_engine';
    const THUMB_WIDTH =      'thumb_width';
    const THUMB_HEIGHT =     'thumb_height';
    const THUMB_SCALING =    'thumb_scaling';
    const THUMB_QUALITY =    'thumb_quality';
    const THUMB_TYPE =       'thumb_type';

    const SHOW_META =        'image_show_meta';
    const ILINK =            'image_ilink';
    const TLINK =            'image_tlink';
    const TIP =              'image_tip';
    const EXPIRES =          'image_expires';
    const UPLOAD_COLLISION_HANDLER = 'upload_collision_handler';

    const COLLISION_MERGE = 'merge';
    const COLLISION_ERROR = 'error';
}