I have a published extension in the Chrome Web Store. Last night, the web store got an updated look, and now my icon appears really small, inside of a jigsaw puzzle piece. I followed the instructions, and uploaded a 128, 48, and 16. All three image files are PNG. My extension is the only one I have seen that is displaying in this way. What did I do wrong?
It's a feature of the store, not a problem with your listing.
All extensions now show their icon inside of a jigsaw puzzle piece; "apps" are free of it.
来源：https://stackoverflow.com/questions/7890713/why-wont-my-icon-show-up-as-full-size-on-the-new-chrome-web-store