How to support CompletionItemKind#Color in LSP client completion?

[angelozerr]

The CSS language server returns CompletionItemKind#Color:

But I wonder how to interpret this Color in LSPclient side to show in completion the proper color like you did on vscode side.

It seems that LSP client should interpret the color name (ex: red), hexadecimal color (ex : #FFFFF) etc, is it the right direction?

[dbaeumer]

This is actually a hack in VS Code itself. It interprets the details property and if this is a hexadecimal color value it takes that value to render the box. There is a VS Code issue to make this more friendly.

[dbaeumer]

See microsoft/vscode#166201