Uniqlo should have made either:
1) a two tone design, with white sides of the shirt
or (what I would do)
2) make it from the same material as the RG 2021, and do a line across the chest (could be white) from mini windowpanes (they form crosses like the cross on the Swiss flag), and make the Uniqlo logo on one side of the chest and the Swiss flag on the other side bigger than the line, so that they look like they are "springing" out from that windowpane line: the identity of the shirt/country are highlighted by the design. By "make them bigger" I mean leave them the same size, but the line should be thinner, approximately 1/2 of the size of the logos.