Based on the search results, "01.png" appears to be a generic filename often used for introductory graphics, logos, or figures within a set. Examples found include:
Frequently used for web graphics, diagrams, and logos. 01.png
Often used for graphics with transparent backgrounds. Based on the search results, "01
It is frequently used for diagrams, such as Earth layers or educational content (e.g., OpenSciEd ). Based on the search results
