When you pass HSVA into the color wheel if you set the V to 0, the dragging of the color wheel cursor becomes stuck and brings S to 0 as well. The H value will change while dragging the cursor, but the cursor never moves from the center of the color wheel.
When you pass HSVA into the color wheel if you set the V to 0, the dragging of the color wheel cursor becomes stuck and brings S to 0 as well. The H value will change while dragging the cursor, but the cursor never moves from the center of the color wheel.