The focus object contains settings for emphasized or focused text within the caption. All properties are optional.
Note: The
cuesarray must contain at least one cue object. ThetextStyleobject andfocus.styleobject (if provided) contain the same properties as the Text element'stextStyleobject, including fontFamily, fontSize, fill (color), align, lineHeight, letterSpacing, wordSpacing, fontWeight, fontStyle, textShadow, underline, strikethrough, isBold, isItalic, shadowEnabled, shadowColor, shadowBlur, shadowAlpha, shadowAngle, shadowDistance, stroke, and strokeWidth.