Resize sprites

After loading the sprite, go to the Edit Sprite button, then double-click on the sprite thumbnail to open the Editor.

 Go to Transform>Scale...

1. change the bigger of the two (height or width)
2. change to 32 pixels (the box to the right, not the percent box)

Now go to Transform>Resize Canvas...

• change the canvas size to 32x32.
• if the height and width are not the same, first change the bigger one. Then uncheck the "Keep aspect ratio" box, and change the smaller one to 32 as well.

When you're done, click on the checkmark to save changes. Then click on the next checkmark to exit the editor.