I did not able to override easydiscuss styles

Hi,
We are developing template which support easydiscuss. Currently I am trying to override its default style by following the general override rules like I had copies com_easydiscuss to my TEMPLATE/html/com_easydiscuss and then themes/simplistic/styles/styles.css I am trying to edit here but not working. I had disable compiler from Layout > General settings. But still its finding css from components / com_easydiscuss. Any advice ?
Thanks in advance.