Mising a nice thumbnail for a own filter

Sorry that I do not understand with having a good nice thumbnail?

You can´t delete ALL presets because there is a minimum of one, but you can replace or upd ate the presets.

If you want to have a thumbnail for your own filter with your own result you need to save a preset with your own se ttings of your filter.

And if you want to submit the filter to the library you can´t use any external image, only built-in images.



Here you will find more information for the presets

Filter Forge Preset Help page

Also maybe perhaps this other thread I have made for beginners that want to make filters could be useful in some way, I know is not well done and correct, but maybe can be of some help.

Guide to new Beginner´s LEARNING making FF filters and tutorials