appearance colored coloring colors coloured colouring colours contrast contrasting cooking courgette cucurbita-pepo culinary cut edible fast-growing food fresh fruit green health health-benefits healthy raw sliced summer-squash surface surfaces texture textures vegetable vegetables zucchini pale-green slices white white-zucchini agricultural agriculture berry citrullus lanatus cucurbita dark green elongated endocarp exocarp firm fleshy juicy melon mesocarp moist mottled nutritious pepo red rind rockmelon round seeds shape skin smooth sucrose sugars sweet variations vine water melon watermelon colorful colourful golden-zucchini yellow yellow-squash yellow-straightneck-squash yellow-zucchini