While colored glass and decorations may have the glass pretty to look at, it detracts from a appreciation of this wine inside, particularly for wine tastings.
Harder to judge, but more central to wine culture is allowing a wine to "breathe". https://qualified-fox-kbd1n1.mystrikingly.com/blog/r-u-cognac-hinh-t-ng-c-a-s-quy-phai-va-tinh-x-o