i have a decal and it is not putting the background invisible when i set background visibility to 1?
decal: https://www.roblox.com/library/1796336340/Images-Ahum
there is no coding just properties / BackgroundTransparency
You cannot do image manipulation within roblox so you'll never be able to remove the black 'background'. BackgroundTransparency is not a property of decals, which leads me to believe you're actually using an ImageLabel or ImageButton. The BackgroundTransparency property of those GUI instances sets the transparency of the native element's background, which would not be visible as your decal is a solid color.
You need to use an image manipulation program ie Paint.Net, remove the black border then export the image in PNG format with alpha channel enabled if that's an option during export. With the proper format supporting alpha channel (transparency), you then set the ImageLabel/ImageButton's BackgroundTransparency property to 1.
Closed as Non-Descriptive by TheeDeathCaster and User#20388
This question has been closed because its title or content does not adequately describe the problem you are trying to solve.
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