src/vs/editor/contrib/colorPicker/browser/colorDetector.ts/ColorDetector/removeAllDecorations
class ColorDetector:	private removeAllDecorations(): void {
		this._decorationsIds = this._editor.deltaDecorations(this._decorationsIds, []);
		this._colorDecoratorIds = new Set(this._editor.deltaDecorations([...this._colorDecoratorIds], []));
		this._colorDecorationClassRefs.clear();
	}