diff --git a/src/graphs/Renderer.js b/src/graphs/Renderer.js
index 4f06585..b25ac5e 100644
--- a/src/graphs/Renderer.js
+++ b/src/graphs/Renderer.js
@@ -7,9 +7,9 @@ import styles from './tooltipStyles.module.css';
 export class Renderer {
   margin = { top: 30, right: 40, bottom: 70, left: 40 };
   width = 1040 - this.margin.left - this.margin.right;
-  height = 460 - this.margin.top - this.margin.bottom;
+  height = 380 - this.margin.top - this.margin.bottom;
   axisLabelFontSize = 14;
-  focusHeight = 120;
+  focusHeight = 90;
   gx;
   gy;
   x;
diff --git a/src/graphs/control-chart/ControlRenderer.js b/src/graphs/control-chart/ControlRenderer.js
index 6bc1ed0..9c59cc9 100644
--- a/src/graphs/control-chart/ControlRenderer.js
+++ b/src/graphs/control-chart/ControlRenderer.js
@@ -3,7 +3,7 @@ import * as d3 from 'd3';
 
 export class ControlRenderer extends ScatterplotRenderer {
   color = '#0ea5e9';
-  timeScale = 'linear';
+  timeScale = 'logarithmic';
   connectDots = false;
 
   constructor(data, avgMovingRangeFunc, chartName, workTicketsURL) {
diff --git a/src/graphs/moving-range/MovingRangeRenderer.js b/src/graphs/moving-range/MovingRangeRenderer.js
index 670c852..a7197e1 100644
--- a/src/graphs/moving-range/MovingRangeRenderer.js
+++ b/src/graphs/moving-range/MovingRangeRenderer.js
@@ -3,7 +3,7 @@ import * as d3 from 'd3';
 
 export class MovingRangeRenderer extends ScatterplotRenderer {
   color = '#0ea5e9';
-  timeScale = 'linear';
+  timeScale = 'logarithmic';
 
   constructor(data, avgMovingRangeFunc, workTicketsURL, chartName) {
     super(data);
diff --git a/src/graphs/pbc/PBCRenderer.js b/src/graphs/pbc/PBCRenderer.js
new file mode 100644
index 0000000..013d595
--- /dev/null
+++ b/src/graphs/pbc/PBCRenderer.js
@@ -0,0 +1,171 @@
+import { UIControlsRenderer } from '../UIControlsRenderer.js';
+
+export class PBCRenderer extends UIControlsRenderer {
+  constructor(controlData, movingRangeData, avgMovingRangeFunc, workTicketsURL, chartName = 'pbc') {
+    super(controlData);
+    this.controlData = controlData;
+    this.movingRangeData = movingRangeData;
+    this.avgMovingRangeFunc = avgMovingRangeFunc;
+    this.workTicketsURL = workTicketsURL;
+    this.chartName = chartName;
+    this.chartType = 'PBC';
+
+    // Child renderers
+    this.controlRenderer = null;
+    this.movingRangeRenderer = null;
+  }
+
+  /**
+   * Initialize child renderers with their respective data
+   */
+  initializeRenderers(ControlRenderer, MovingRangeRenderer) {
+    this.controlRenderer = new ControlRenderer(this.controlData, this.avgMovingRangeFunc, `${this.chartName}-control`, this.workTicketsURL);
+
+    this.movingRangeRenderer = new MovingRangeRenderer(
+      this.movingRangeData, // Moving range calculated data
+      this.avgMovingRangeFunc,
+      this.workTicketsURL,
+      `${this.chartName}-moving-range`
+    );
+  }
+
+  /**
+   * Render both charts
+   */
+  renderGraph(containerSelector) {
+    this.createContainers(containerSelector);
+    // Render control chart
+    this.controlRenderer.renderGraph(`${containerSelector} .control-chart`);
+    // Render moving range chart
+    this.movingRangeRenderer.renderGraph(`${containerSelector} .moving-range-chart`);
+    // Sync baseline dates and time ranges
+    this.syncChartProperties();
+  }
+
+  /**
+   * Create HTML containers for both charts
+   */
+  createContainers(containerSelector) {
+    const container = document.querySelector(containerSelector);
+    if (!container) return;
+
+    container.innerHTML = `
+      <div class="pbc-charts">
+        <div class="control-chart"></div>
+        <div class="moving-range-chart"></div>
+      </div>
+    `;
+  }
+
+  /**
+   * Setup brush - only from control chart
+   */
+  setupBrush(brushSelector) {
+    this.brushSelector = brushSelector;
+    this.controlRenderer.setupBrush(brushSelector);
+    this.syncBrushEvents();
+    this.updateGraph(this.controlRenderer.selectedTimeRange);
+  }
+
+  /**
+   * Sync brush events to update both charts
+   */
+  syncBrushEvents() {
+    // Override control renderer's updateGraph to also update moving range
+    const originalUpdateGraph = this.controlRenderer.updateGraph.bind(this.controlRenderer);
+    this.controlRenderer.updateGraph = (domain) => {
+      // Update control chart
+      originalUpdateGraph(domain);
+
+      // Update moving range chart with the same domain
+      this.movingRangeRenderer.updateGraph(domain);
+    };
+  }
+
+  setTimeScale(timeScale) {
+    this.controlRenderer.timeScale = timeScale;
+    this.movingRangeRenderer.timeScale = timeScale;
+  }
+
+  /**
+   * Sync properties between charts
+   */
+  syncChartProperties() {
+    if (!this.controlRenderer || !this.movingRangeRenderer) return;
+    this.movingRangeRenderer.reportingRangeDays = 30;
+    this.controlRenderer.reportingRangeDays = 30;
+    this.movingRangeRenderer.timeInterval = 'months';
+    this.controlRenderer.timeInterval = 'months';
+    this.movingRangeRenderer.timeScale = 'logarithmic';
+    this.controlRenderer.timeScale = 'logarithmic';
+  }
+
+  /**
+   * Setup event bus for both charts
+   */
+  setupEventBus(eventBus, mouseChartsEvents, timeRangeChartsEvents) {
+    this.controlRenderer?.setupEventBus(eventBus, mouseChartsEvents, timeRangeChartsEvents);
+    this.movingRangeRenderer?.setupEventBus(eventBus, mouseChartsEvents, timeRangeChartsEvents);
+  }
+
+  /**
+   * Setup observations for both charts
+   */
+  setupObservationLogging(observations) {
+    this.controlRenderer?.setupObservationLogging(observations);
+    this.movingRangeRenderer?.setupObservationLogging(observations);
+  }
+
+  setTimeScaleListener(timeScaleSelector) {
+    const selectElement = document.querySelector(timeScaleSelector);
+    if (!selectElement) {
+      console.warn(`Time scale selector not found: ${timeScaleSelector}`);
+      return;
+    }
+    // Single event listener that updates both charts
+    selectElement.addEventListener('change', (event) => {
+      const newTimeScale = event.target.value;
+      // Update both renderers
+      if (this.controlRenderer) {
+        this.controlRenderer.timeScale = newTimeScale;
+        this.controlRenderer.computeYScale();
+        this.controlRenderer.updateGraph(this.controlRenderer.selectedTimeRange);
+        this.controlRenderer.renderBrush(); // Only control renderer renders brush
+      }
+
+      if (this.movingRangeRenderer) {
+        this.movingRangeRenderer.timeScale = newTimeScale;
+        this.movingRangeRenderer.computeYScale();
+        this.movingRangeRenderer.updateGraph(this.controlRenderer.selectedTimeRange);
+        // No renderBrush() for moving range
+      }
+    });
+  }
+
+  /**
+   * Clear both charts
+   */
+  clearGraph(containerSelector, brushSelector) {
+    this.controlRenderer?.clearGraph(`${containerSelector} .control-chart`, brushSelector);
+    this.movingRangeRenderer?.clearGraph(`${containerSelector} .moving-range-chart`, null);
+
+    const container = document.querySelector(containerSelector);
+    if (container) container.innerHTML = '';
+  }
+
+  /**
+   * Update both charts
+   */
+  updateGraph(domain) {
+    this.controlRenderer?.updateGraph(domain);
+    this.movingRangeRenderer?.updateGraph(domain);
+  }
+
+  /**
+   * Cleanup
+   */
+  cleanup() {
+    this.controlRenderer?.cleanupTooltip?.();
+    this.movingRangeRenderer?.cleanupTooltip?.();
+  }
+}
diff --git a/src/graphs/tooltipStyles.module.css b/src/graphs/tooltipStyles.module.css
index 4d42229..58f19f8 100644
--- a/src/graphs/tooltipStyles.module.css
+++ b/src/graphs/tooltipStyles.module.css
@@ -5,7 +5,7 @@
   height: max-content;
   padding: 8px;
   font: 14px sans-serif;
-  background: #e2ecfd;
+  background: #b1b1b1;
   border: 0;
   border-radius: 8px;
   z-index: 1;
@@ -44,13 +44,13 @@
 
 /* Specific metric colors */
 .cycleTime {
-  color: #d57500; /* orange */
+  color: yellow; /* orange */
 }
 
 .leadTime {
-  color: #0062a5; /* blue */
+  color: indigo; /* blue */
 }
 
 .wip {
-  color: #dd0030; /* pinkish-red */
+  color: red; /* pinkish-red */
 }
diff --git a/src/index.js b/src/index.js
index 240d89d..73d9f12 100644
--- a/src/index.js
+++ b/src/index.js
@@ -9,6 +9,7 @@ import { ControlRenderer } from './graphs/control-chart/ControlRenderer.js';
 import { HistogramRenderer } from './graphs/histogram/HistogramRenderer.js';
 import { WorkItemAgeGraph } from './graphs/work-item-age/WorkItemAgeGraph.js';
 import { WorkItemAgeRenderer } from './graphs/work-item-age/WorkItemAgeRenderer.js';
+import { PBCRenderer } from './graphs/pbc/PBCRenderer.js';
 import { eventBus } from './utils/EventBus.js';
 import { processServiceData } from './data-processor.js';
 import { ObservationLoggingService } from './graphs/ObservationLoggingService.js';
@@ -26,6 +27,7 @@ export {
   WorkItemAgeGraph,
   WorkItemAgeRenderer,
   ObservationLoggingService,
+  PBCRenderer,
   eventBus,
   processServiceData,
 };