Displaying product images only according to the variants (theme Concept)

[Altdrea]

Hi there, pls help me with this problem: 

How can I set it up so that only the product images for selected variants are visible on the product page? Even for multiple variants.

For example: I have a product with 2 variants: Size and color. This product has 2 sizes (small, medium) and 3 colors (white, black and navy).

I tried to set the img alt tag like this: #color_white #size_small. (By theme Concept should be alt tags like this) 

If I enter the alt tags like this (and if I specify 2), it only considers the second one. So on the product page, when making a selection, it displays every small-sized product (which is correct), but in all colors, even if another color is selected.

Thanks for helping me!

[wpmmarketing]

same problem