Conditional logic – hide zero value – Subtotal for menu cart

As of Woostify version 1.8.5, we can toggle “Add Hide zero value for the menu cart” in the WordPress customizer. This is a useful feature! There was also a feature added to show the “Subtotal for the menu cart”.

(screenshots in link below are made in Dutch language)
https://imgshare.io/image/pc9xBu
https://imgshare.io/image/pc9Y7X
https://imgshare.io/image/pc9m05

However, for the “subtotal” (visually on the left side of the cart icon) there is no conditional logic to ‘hide’ the amount when the value is zero (woostify-header-total-price).

I basically want another toggle switch in the customizer to :
“Ignore the null value on the sub-total”

I assume this could be a pretty easy implementation if you find it useful in the theme. If not, is there a possibility that you can advise a workaround using ‘code snippets’ ?

Thank you.