The US-Israeli war on Iran is draining the colour from Japan’s supermarket shelves, with the biggest crisp makers swapping once-vibrant packaging for monochrome as a result of a shortage of ink. Tokyo-based Calbee, one of the most popular brands in the snack market, has said it will – at least temporarily – switch to using black and white on the packaging of 14 of its products, including its Calbee Potato Chips. Recommended Stories list of 3 items list 1 of 3 Seafarers trapped in limbo as US and Iran clash in Strait of Hormuz list 2 of 3 Oil prices jump as US, Iran trade fire in Strait of Hormuz list 3 of 3 Global energy crisis highlights meagre oil buffers in developing world end of list Calbee is just one of many Japanese companies attempting to minimise the fallout from the faraway war in Iran, which has triggered a global supply shock. Since the end of February, when the war began, the Strait of Hormuz , through which one-fifth of the world’s oil is shipped during peacetime, has been effectively shut.…