The gold refers to the wealth of fruit and water, and also to the spiritual wealth of the region and city. To the hoist we can see a brown vertical stripe. The city seal unites all three stripes. The flag ends fimbriated in yellow. Green invokes the greenness of the municipal landscape covered by the variety in its flower's colors.
Gold stands for the fruit and aquatic richness as for the region and citizenry spiritual aspect.
The Virgin of Carmen and the savannah pigeon come to shape in the brown color. And yet all are supposed to have the same proportions, it seems.