Hi Yudhisthir,
Greetings from Syncfusion. Kindly find the repose to your queries below.
Query #1: Sample for provided image
We have analyzed and created a sample according to the provided image. Please refer the below sample to achieve it.
Query #2: Eliminate white border of chart
The white border of the chart can be eliminated by providing the value for plotAreaBorderWidth property as 0.
Query #3: Custom colored gridlines
As of now, customized gridline support is not available with chart. However, you can achieve it by using the Plotband feature of the axis. For further reference on plotband, please refer the user guide below. And using this plotband, we have achieved your requirement with the above sample.
Thanks,
Sriram Kiran.