Widget customization

<div
  id="fitresa-widget"
  data-gym="your-slug"
  data-color="#FF4D00"
  data-lang="en"
  data-mode="auto"
></div>

Attribute	Values	Description
data-color	Hex color	Primary color (buttons, accents)
data-lang	fr, en, es, it, pt	Widget display language
data-mode	light, dark, auto	Light / dark / system theme