Everywhere in the Atlas, the same small grammar repeats. On a sūtra page and in the Reader, the warm block is the sūtra itself: the anchor everything else hangs from. In Concepts the deeper saffron block is something else: a passage quoted word for word from a commentary, set in quotation marks, with the sūtra it belongs to following beneath as a quiet line in that edition’s own translation. The name above a passage tells you whose voice you are reading, commentator first, tradition beneath. A quiet note like Numbered 2.3.15 in this text records how that edition prints the number.
Commentary · 535 words tells you the scale of what awaits before you commit. Small capitals like PŪRVAPAKṢA mark the role of the quoted commentary excerpt they stand above in that commentator’s argument; they never classify the sūtra. Tap one to see what it means. And an arrow always means you are going somewhere; reading in place never requires one.
When a page says No commentary from Rāmānuja at this sūtra, that is a fact about the sources, stated plainly: the edition contains no counterpart at that position. Nothing is missing from the Atlas; the texts themselves differ, and the Atlas shows the difference.