When reading baseball statistics, if a player's name is in "bold" font (it is when characters or letters are designed with a heavier appearance), it indicates that the player is active.
Denotes active player. Bold is a font style used for emphasis. The weight of a particular font is the thickness of the character outlines relative to their height. A typeface may come in fonts of many weights, from ultra-light to extra-bold or black; four to six weights are not unusual, and a few typefaces have as many as a dozen. Although CSS specifies "Bold" as a 700 weight and 600 as Semibold or Demibold, the Go numerical weights match the actual progression of the ratios of stem thicknesses: Normal:Medium = 400:500; Normal:Bold = 400:600.' The terms normal, regular and plain (sometimes book), are used for the standard weight font of a typeface. 
