Replace:
Code:
<if condition="can_moderate(0,'cancontrolpanel',$post[userid],'')"> style="background: #C0EEEE; color: #000000;"<else /><if condition="can_moderate(0,'ismoderator',$post[userid],'')"> style="background: #EEC0EE; color: #000000;"</if></if>
With:
Code:
<if condition="in_array($post[userid],array(1,2,3))"> style="background: #C0EEEE; color: #000000;"</if>
And then edit the template.
Note: change 1,2,3 to a comma separated list of userids.