How can I highlight specific variant sales on my website using Impact theme?

[cringebg]

Hello everyone, I hope you are having a great day!

We are running sales on our website www.cringe.bg for specific variants (usually specific sizes, for example a T-Shirt XL can be on sale, while all other variants are regular price).

How can I highlight this in the pdp? Right now when someone clicks on a products that is displayed (on sale) they are first shown size S (which makes sense logically), but if for example XL is on sale they have no way of seeing exactly which size is on sale and it seems a bit misleading for the customer.

On our page "SALE" there are a couple of products that show discounted prices (its only one size per product). If someone clicks on these products they will think we are misleading them unless they want this specific size.

What would be nice is to somehow highlight the variant on SALE, for example:

Another option would be that the variant on SALE appears first when someone clicks on the product. However it would be weird if the sizes look like this - XXL, S, M, L, XL, 3XL (since XXL is on sale)

Is there a way to do this without manually reordering variants every time and without creating a seperate product with only this size? Thank you!

Best regards,
Georgi