Hello Silvo.
First of all sorry for my very late response. Actually I was dead busy in my routine life. I was looking for a method to show thumbnail with fixed width and auto height. I was generating the thumbnail of this size using the following function.
add_theme_support
Now I have fixed my issue. When I will make it live, I will show you that what I have done with your plugin if you are interested. Thank you for your quick response and sorry for my very late response.
