Featured image problem - how to make the right size

first of all i want to thank you again for this awesome theme
i have a problem with featured images i want to know if there is a solution, to show up in the slider only the posts who have the featured images with recommended sizes ?
and also resize the featured images who don’t have the recommended sizes ?

Unfortunately, there is no slider ever created like that that would check if it is worth to display those images or not. It is just ridiculously difficult to code and there is almost no ue case for that.

WordPress has its own image editor that you can access via WordPress dashboard - Media. Personally, I edit all images before I even upload to WordPress as it is much easier as any image editor can be used. Even Paint is good enough for that.

Let me know if this helps

aaah ok
anyway your suggestion work perfectly
thank you again