data-foreground-color attribute takes a boolean. The boolean determines whether the player is written to the DOM immediately during script execution via
document.write() or on demand via lazy load.
Generally, we recommend leaving this value blank as it accounts for most embedding scenarios. However, in cases where it is better to load the player at a time after the page loads, this attribute is helpful in conjunction with the
Bolt.renderPlayer() method. Check out the “Lazy Loading” example in the Getting Started section.