With the Charge theme, it is possible to show the product price tax information. To display the tax info (Taxes Included or Excluded) go to Pricing and Installments and enable the checkbox Show tax information.
Leave a message block
In the 1.6 release, we added the ability to show the block "Leave a message" on the product page. It can be visible for specific collections.
Note: with an empty value the block will be available for all products.
The feature helps your customers leave some notifications that will be visible on the cart page and account order page.