[WebAPI] Implement CanvasRenderingContext2D.createConicGradient

[chrisdavidmills]

Acceptance criteria

1. • The listed features are documented sufficiently on MDN
2. • BCD is updated
3. • Interactive example and data repos are updated if appropriate
4. • The content has been reviewed as needed

Features to document

1. CanvasRenderingContext2D.createConicGradient. Page/compat data doesn't already exist, so a fair bit of work to do here. Needs everything basically. Copy the structure already seen at createLinearGradient.

Related Gecko bugs

1. • Implement CanvasRenderingContext2D.createConicGradient

For folks helping with Firefox-related documentation features — make sure above AC have been done, but also:

• Set bugs to dev-doc-complete
• Add entry to Firefox release notes if feature is enabled in release
• Add entry to Firefox experimental features page if feature is not yet enabled in release

[Rumyra]

Adding a todo:

• Create example
• https://developer.mozilla.org/en-US/docs/Web/API/CanvasGradient
• Add page
• Update canvas tutorial pages where appr
• Update any canvas gradient pages
• Update BCD
• Update spec data
• Update experimental

[Rumyra]

So this is the spec as it stands at the moment https://github.com/fserb/canvas2D/blob/master/spec/conic-gradient.md

It hasn't been added to the HTML spec yet and looking at it one assumes this will need to be reference for some of the other additions - I think I should add this to kumascript referring 'Modern Canvas 2D'.

However it does mean the macro will probably fail as the main url would be https://github.com/fserb/canvas2D and additional feature links would not start with # but instead be /blob/master/spec/conic-gradient.md... any thoughts welcome @chrisdavidmills

[Ryuno-Ki]

Since the location or name of the file may change over time, here is the permalink:
https://github.com/fserb/canvas2D/blob/95dcc7bf2f27b1fe83e12a23678666e00b992b22/spec/conic-gradient.md
(for as long as the repo is not deleted).

You can get that link via y on a GitHub page. (See ? for more shortcuts)

[chrisdavidmills]

@Rumyra for the moment, I'd just not bother adding it to the spec list, and just put something in the specifications section along the lines of "Not yet added to the HTML specification. This feature is currently specified at [link]".

We can add it when it is in the spec.

[Rumyra]

Seems all prs for this are in - should just need 'dev-doc-complete'

[chrisdavidmills]

DDC set on bug, and all ready to go!

Thanks @Rumyra ! Closing now.