FontMetrics.max_box
You're seeing just the function
max_box
, go back to FontMetrics module for more information.
Specs
max_box(pixels :: number(), metrics :: t()) :: {x_min :: number(), y_min :: number(), x_max :: number(), y_max :: number()}
Return a box that would hold the largest character in the font.
The response is scaled to the pixel size.
returns {x_min, y_min, x_max, y_max}