Thanks for your reply qwerty99…
I mean when the image be changed to thumbnail, it doesn’t matter if is gif or png, always show the black background. I understand for you works, but not for me… I use photshop for convert the images in this case png to gif
I resolved for another method, i upload the thumbnails created in photoshop into wp-content/uploads/leaguemanger/ and works, but it was a solution outside for the plugin.
Greetings!
