                if (mode === 'heater') {
                        return {
                            fillStyle: 'rgba(55, 50, 250, 0.9)',
                            shadowColor: 'rgba(55, 50, 250, 0.8)',
                            globalCompositeOperation: 'lighter',
                            shadowBlur: 5,
                            size: 13,
                            max: 20,
                            maxOpacity: 0.9,
                            draw: 'heatmap'
                        };
       