I believe those Givi bags are custom painted to match the bike.
According to their web site, the V35 only come in several colors, red not being one of them.
I was looking around on eBay and found a set of the V35 cases for the Bandit. Here is a quote from the auction:
UP FOR SALE IS A BRAND NEW SET OF OEM SUZUKI SIDE CASES WITH RED COVER PANELS ( TOP CASE NOT INCLUDED)
35 LITER (1.2 CU FT ) CAPACITY DETACHABLE SIDE CASE. INCLUDES KEYS TO LOCK CASE TO MOUNT AND OPEN / CLOSE CASE. TOTAL INSTALLED WIDTH ON BIKE IS 41 INCHES.
NOTE THIS AUCTION HAS THE RED COLOR COVER PANELS INCLUDED ( PART # 990D0-V35SC-YHL )
Mounting hardware sold seperately
BUY FROM US AND SAVE !!!
Fits The Following Models:
07 - 09 BANDIT 1250
So evidently, Givi did offer a red panel for those bags at one time.