CSS Colors Level 4 - 4 & 8 digit hex values

[praveenpuglia]

fix: #32

Note.
This doesn't show any color in small color box in the editor beside the color definition because css itself doesn't support it at the moment.

We could get around that problem by detecting and converting #rgba or #rrggbbaa values to rgba() values before they are added to css/client/src/colorDecorators.ts.

@aeschli - please correct me if I missed something. Very new to the source code.

[msftclas]

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[aeschli]

Looks good. Can you also provide a fix for the color decorations (in vscode)? As you write, it needs to be detected and converted to 'rgba(...)' There is should also be fixed at https://github.com/Microsoft/vscode/blob/master/extensions/html/client/src/colorDecorators.ts#L114

[praveenpuglia]

@aeschli - I am working on a fix. Thinking of adding a converter function in the colorDecorators.ts itself. Is there a better suited for these sort of helpers?

[praveenpuglia]

@aeschli - made this commit to my own fork. Can you please check it once?
praveenpuglia/vscode@434beab

Also, couldn't understand where do I write tests for it.

[egamma]

@praveenpuglia fyi, we have vacation time over hear so response time will we slower.

[praveenpuglia]

@egamma - sure. Have a great one! 👍 😊