When you try to save such an image, the background area of the image will no longer be transparent and turns into solid color; in most cases, white i.e. Color 2.

LG Set To Unveil Sliding Doors Using Futuristic Transparent OLED Displays by Nathan Ord — Monday, December 07, 2020, 01:26 PM EDT Comments ...

If you download the PNG or JPG version of the image, it will come with the background. In other words, you cannot use the design on your T-shirt or logo on your website. That is why Canva offers ...