been looking to find some fish currys on here, but carnt seem to find hardly any, am i looking in the wrong place, or is this there isnt many thanks boschwayne

Hi everyone i would like to ask, how are Indian restaurant Curry's always a browny color, i have done a few of the base sauces and made a good lot of the curries on this site, turned out fantastic this site is brilliant. but my curries always seem to be a red or orange color, what do you add to make them the dark browny color like in the Indian restaurants etc  thanks boschwayne .