My client makes special boxes which are engraved on the front. Engraving is usually a standard colour but I need to create an option that allows the customer to choose a different colour engraving if they want. The engraving colour depends on the colour of the box, e.g. a light coloured box can have a dark coloured engraving and vice versa. There are many different box colours and many engraving colours.
I am using the colour pallettes field as I need very specific colours.
So, for example, if a customer chooses a red or blue box they can ONLY have a choice of green or yellow engraving. But if they choose a black or grey box they ONLY have a choice of pink or purple engraving.
Thus, the choice of engraving colour is dependent upon the colour selection of the box.
How do I do this? I was hoping I could show engraving colour based on the colour of box selected.