append variables
  - var title = 'Jadoo | Travel Agency Landing Page UI';
  - var theme = `${name}-${version}`;
  - var bootstrapVersion = '5.0';
  - var attrsMain = { id: 'top', class: 'main' };
  - var attrsLayout = { class: 'container', 'data-layout': ENV === 'PROD' ? 'container' : false }
  - var colors = ['primary', 'secondary', 'success', 'info', 'warning', 'danger', 'light', 'dark'];
  - var grays = ['black', 1100, 1000, 900, 800, 700, 600, 500, 400, 300, 200, 100, 'white'];
  - var colorsAll = colors.concat(grays);
  - var footer = true;
  - var currentPage = 'index'