Color control element square buttons - Stock vector

control, adjusting, tune, tuning, tweaking, element, tool, device, sliders, settings, steps, interval, minus, plus, negative, positive, decrease, increase, shrink, enlarge, low, high, buttons, icons, application, symbol, signs, set, design, user-interface, template, vector, illustration, glossy, square, rounded, rounded-square, rectangle, color, blue, red, green, orange, purple, yellow, cyan, gray, grey, black, white