legend
legend
legend
legend
legend
The legend identifies patterns used for each series.
This reference element is called a key.
The legend is the function that identifies the data marker for each series in a chart.
A password
Seeing as most periodic tables I use are in black and white, its mostly patterns. Vertical columns share certain properties, horizontal rows share some properties, and the various series are also related.
electromagnetic radiation
The duration of True Colors - TV series - is 1440.0 seconds.
Identifies the model series.