A row of beer glasses on a bar, each filled with beer of varying colors from light to dark. The glasses should be arranged from left to right, starting with the lightest beer at 2 SRM (pale straw) and ending with the darkest beer at 40+ SRM (very black). The colors should transition smoothly, representing the SRM scale from 2 to 40+. The bar setting should be warm and inviting, with subtle lighting highlighting the gradient of beer colors.