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Fabric.js Polygon backgroundColor Property

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  • Last Updated : 26 Aug, 2020

In this article, we are going to see how to draw a fill colored canvas polygon using FabricJS. The canvas polygon means the polygon is movable and can be stretched according to requirement. Further, the polygon can be customized when it comes to initial stroke color, height, width, or stroke width.

Approach: To make this possible we are going to use a JavaScript library called FabricJS. After importing the library, we will create a canvas block in the body tag which will contain the polygon. After this, we will initialize instances of Canvas and polygon provided by FabricJS and enable the backgroundColor of canvas polygon using backgroundColor property and render the polygon on the Canvas as given below.


   { x: pixel, y: pixel },
   { x: pixel, y: pixel },
   { x: pixel, y: pixel},
   { x: pixel, y: pixel},
   { x: pixel, y: pixel }],
    backgroundColor: 'string'

Parameters: This function accepts a single parameter as mentioned above and described below:

  • backgroundColor: This parameter defines the background color of the polygon.

Note: Dimension pixels is must create a polygon.

Below example illustrates the Fabric.JS Polygon backgroundColor property in JavaScript:



<!DOCTYPE html>
    <!-- Loading the FabricJS library -->
    <script src=
    <div style="text-align: center;width: 600px;">
        <h1 style="color: green;">
            Fabric.js | Polygon backgroundColor Property
    <canvas id="canvas" width="600" height="200" 
        style="border:1px solid #000000;">
        // Initiate a Canvas instance 
        var canvas = new fabric.Canvas("canvas");
        // Initiate a polygon instance 
        var polygon = new fabric.Polygon([
            { x: 295, y: 10 },
            { x: 235, y: 198 },
            { x: 385, y: 78 },
            { x: 205, y: 78 },
            { x: 355, y: 198 }], {
            backgroundColor: 'green'
        // Render the polygon in canvas 


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