Family Scrubbing Graph Arrow Direction Up Down Interaction

When the user presses and scrubs across the line chart, a vertical guide line and a circular tracking handle appear to follow the finger. As the user drags horizontally, the price and percentage change values at the top of the screen update in real-time. The percentage change indicator dynamically switches color (green for positive, red for negative) while the accompanying arrow icon slides vertically and rotates to point up or down based on the value's direction. The price digits transition with a subtle, rapid vertical ticker effect as they update.