The Table of Contents (ToC) should feature a graphical figure accompanied by a concise description. The ToC description, tailored for a general audience, should encapsulate key results in 30 to 50 words.
The ToC figure must convey the paper's primary message, utilizing not only figures from the article but also regenerating or creating a new, original figure for clarity. The author must hold the copyright for this figure and its related images. The image dimensions should be either 60 × 50 mm (w × h) or 100 mm × 40 mm (w × h).