The Blog tab allows you to set various properties for the standard blog layout in Joomla.
Blog articles in the category view are output as bootstrap cards, for which some configurations such as show header and color scheme are adjustable.
Further adjustments can be added via the fields of the CSS classes in the tab (please see the Bootstrap documentation).
In order to get a Masonry effect in the Joomla Standard Blog, the number of columns> 1 must be set in the respective blog settings in Joomla.
In the template you can specify how many Masonry Cards appear in the standard view and in the "XL view"