Creating ribbons in Circos

I’ve been creating ribbons in the circos plots which are supposed to be colored but the ribbons keep on coming out as solid black lines. Here’s the data set I’ve been using:
HS1 900000 58500000 MM4 103300000 156300000 color=brown
HS1 58700000 67100000 MM4 94900000 103200000 color=brown
HS1 67200000 67900000 MM6 66900000 67500000 color=brown
HS1 68100000 89300000 MM3 142500000 159900000 color=brown
HS1 89500000 93400000 MM5 105400000 108300000 color=brown
HS1 93400000 120800000 MM3 97700000 122600000 color=brown
HS1 121400000 121600000 MM13 117100000 117300000 color=brown
HS1 143900000 145100000 MM1 131300000 131600000 color=brown
HS1 147100000 158200000 MM3 87000000 98100000 color=brown
HS1 158500000 207400000 MM1 130400000 174400000 color=brown
HS1 207400000 227500000 MM1 179800000 195200000 color=brown
HS1 227700000 228500000 MM11 58900000 59500000 color=brown
HS1 235200000 239900000 MM13 9900000 14200000 color=brown
HS1 240100000 247000000 MM1 174500000 179800000 color=brown
HS2 200000 9100000 MM12 24700000 31000000 color=olive
HS2 10200000 26100000 MM12 3200000 17800000 color=olive
HS2 26200000 28800000 MM5 30100000 32500000 color=olive
HS2 28800000 53000000 MM17 71600000 93100000 color=olive
HS2 53700000 68500000 MM11 17000000 31100000 color=olive
HS2 68500000 70800000 MM6 86000000 87700000 color=olive
And it created this image: