Are you joking, or is this a rule? I am busy and I cannot be bothered to check this right now.
Also this is an issue that the WIkia staff are not helping with, or have not provided much information for new founders to change the sizes. This isn't a critical issue however one must admit 19x19 is criminally small whne placed a modern 1080x1920 screen. It's hard an emote when the text itself towers over the image.