feat(bar): bar background

[Ovilia]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

Provide background for bar series under both cartesian and polar coordinates.

Fixed issues

• Bar series support background option #11405: Bar series support background option

Details

Before: What was the problem?

No background.

After: How is it fixed in this PR?

Providing background options.

Usage

Are there any API changes?

• The API has been changed.

Added series[bar].backgroundStyle option in the form of:

backgroundStyle: {
    color: 'transparent',
    borderColor: null,
    borderWidth: '0',
    borderType: 'solid',
    borderRadius: 0,
    shadowBlur: 0,
    shadowColor: '',
    shadowOffsetX: 0,
    shadowOffsetY: 0,
    opacity: 1
}

Related test cases or examples to use the new APIs

• test/bar-large.html
• test/bar-polar-basic-radial.html
• test/bar-polar-basic.html
• test/bar-polar-multi-series-radial.html
• test/bar-polar-multi-series.html
• test/bar.html
• test/bar3.html

Others

Merging options

• Please squash the commits into a single one when merge.

Other information