Minecraft wiki entry for Custom_maps, associated text: Here, we remove the spaces and newlines between the "text", "color", and "underlined" values. Note that spaces inside the "text" string were not removed. The useless "", at the start was also removed as it serves no purpose. Some generators erroneously add that. The trailing space at the end was removed; however this might not always be wanted. Be careful when editing "text" strings. If your resource pack has a custom language file, you can compress that as well.