src/vs/workbench/api/common/extHostLanguageFeatures.ts/ExtHostLanguageFeatures/registerColorProvider
class ExtHostLanguageFeatures:	registerColorProvider(extension: IExtensionDescription, selector: vscode.DocumentSelector, provider: vscode.DocumentColorProvider): vscode.Disposable {
		const handle = this._addNewAdapter(new ColorProviderAdapter(this._documents, provider), extension);
		this._proxy.$registerDocumentColorProvider(handle, this._transformDocumentSelector(selector));
		return this._createDisposable(handle);
	}