Thank you for the feedback! Do you mind letting me know what settings you are using in the creator when trying to apply the outline? The outline seems to work on all systems I've tried it on, but would be great if i could replicate your setup in the creator to see if there is some edge case i have missed.
Actually, nevermind. The thing is that when I clicked the outline, I expected to see the outline applied in the preview inside the editor itself. However after I selected the outline option and generated the sprite sheet, I was able to see it generated the sprite sheet correctly with the outline.
Small question, can we change the color of the outline?