1. Mix the black benas, pinto beans, white corn, green chiles, jalapeno pepper, red and green bell peppers, onion and cilantro together in large bowl.
2. To make the dressing: stir the rice vinegar, olive oil, sugar and garlic powder together in a pan. Bring to boil then remove from heat and cool. Pour dressing over bean mixture and toss to mix evenly.
3. Serve with your favorite chips or bread pieces.