If you design a logo or any custom T-shirt on Canva ... the problem starts when you start the design by adding a white or black or any other solid color block in the background.

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. But again, there is a hack ...

Remember, on dark or non-white backgrounds ... Do not make the logo transparent. Do not move elements of the logo. Do not change the color of the University logo. Do not use the N outside of the box.

In Normal view, right-click the logo image and choose Show Picture Toolbar to display the Picture toolbar. Click the Set Transparent Color tool ... the off-white background will just disappear ...