Thumbnails like in Drupal

Kwel-vrae

Why I got problem after using plugin

Please note that main system preset large used as default when include in Gutenberg editor.
So if you disable large and delete all unused thumbnail your page can got broken image!
It that case just enable large and regenerate it thumbnails.

If I remove plugin image for preview by mistake

Just deactivate and activate plugin again. It create that image again.

How to add custom effects to plugin effects list

1. Use filter wpdi_get_available_effects to add or remove effect from effects list
2. Extend WPDI_Effects_Imagick and/or WPDI_Effects_GD plugin classes if you want to add custom effect
3. Use wp_image_editors to replace plugin handlers with created in #2
4. Use wpdi_make_preset_effect for set handler function name (optional), handle function with effect name by default
5. Use wpdi_build_preset_effect for describe effect in presets linst (optional)

ps: You should use priority greater then in plugin (WPDI_Common::PLUGIN_HOOK_PRIORITY);