  {
                type: 'graph',
                name: 'Random',
                precision: 2,
                lookupPrecision: 50,
                value: performance.now() - 1000,
                noText: true,
                callback: (value, item) => {
                    // console.log('Random callback:', value);

                    const time = performance.now();

                    // Update once per second
                    if (time - 1000 > value) {
                        value = time;

     