diff --git a/canvas-gauges/canvas-gauges-tests.ts b/canvas-gauges/canvas-gauges-tests.ts
index d0f04e1082..015bdfd7e2 100644
--- a/canvas-gauges/canvas-gauges-tests.ts
+++ b/canvas-gauges/canvas-gauges-tests.ts
@@ -8,10 +8,12 @@ import {
 } from 'canvas-gauges';
 
 let linearOptions: LinearGaugeOptions = {
-    renderTo: document.createElement('canvas')
+    renderTo: document.createElement('canvas'),
+    fontNumbersStyle: 'italic'
 };
 let radialOptions: RadialGaugeOptions = {
-    renderTo: 'gauge-id'
+    renderTo: 'gauge-id',
+    fontNumbersWeight: 'bold'
 };
 
 new LinearGauge(linearOptions);
diff --git a/canvas-gauges/canvas-gauges.d.ts b/canvas-gauges/canvas-gauges.d.ts
index 2b67c7f76f..b330726f55 100644
--- a/canvas-gauges/canvas-gauges.d.ts
+++ b/canvas-gauges/canvas-gauges.d.ts
@@ -4,6 +4,10 @@
 // Definitions: https://github.com/Mikhus/DefinitelyTyped
 
 declare namespace CanvasGauges {
+    export type FontStyle = 'normal' | 'italic' | 'oblique';
+    export type FontWeight = 'normal' | 'bold' | 'bolder' | 'lighter' |
+        '100' | '200' | '300' | '400' | '500' | '600' | '700' | '800' | '900';
+
     export type RenderTarget = string|HTMLElement;
 
     export interface AnimationRule {
@@ -86,7 +90,15 @@ declare namespace CanvasGauges {
         fontTitleSize?: number,
         fontValueSize?: number,
         fontUnitsSize?: number,
-        fontNumbersSize?: number
+        fontNumbersSize?: number,
+        fontTitleStyle?: FontStyle,
+        fontValueStyle?: FontStyle,
+        fontUnitsStyle?: FontStyle,
+        fontNumbersStyle?: FontStyle,
+        fontTitleWeight?: FontWeight,
+        fontValueWeight?: FontWeight,
+        fontUnitsWeight?: FontWeight,
+        fontNumbersWeight?: FontWeight
     }
 
     export interface RadialGaugeOptions extends GenericOptions {