matte-looking surface rather than an unusually glossy appearance. An extremely shiny rind can sometimes be associated with fruit that has not reached full maturity.
However, color and shine vary considerably between watermelon varieties.
Some varieties are naturally dark green, some are light green, and others have dramatic stripes. Therefore, a specific shade of green should not be treated as a universal sweetness test.
Instead of searching for one “perfect” color, compare watermelons of the same type that are displayed together.
The Field Spot Is One of the Most Useful Visual