Code:
      case 1:   // Doesnt mess up the gun when used like xqz style does
   if (!(mode==GL_TRIANGLE_STRIP||mode==GL_TRIANGLE_FAN||mode==GL_QUADS))
      {
         ColorEntry* c = colorList.get(51);
         p_fnglColor3f( c->onebased_r, c->onebased_g, c->onebased_b);
         float curcolor[4];
         p_fnglGetFloatv(GL_CURRENT_COLOR, curcolor);
         p_fnglDisable(GL_DEPTH_TEST);
         p_fnglEnable (GL_BLEND);
         oglBlendFunc(GL_ONE_MINUS_SRC_ALPHA, GL_SRC_ALPHA_SATURATE);
         oglColor4f(curcolor[0], curcolor[1], curcolor[2], .2 );
         cvar.nosky=1;
         cvar.trans=0;
         cvar.tran_team=0;
      }
      else if(mode==GL_TRIANGLES || mode==GL_TRIANGLE_STRIP || mode==GL_TRIANGLE_FAN)
      {
         p_fnglEnable(GL_DEPTH_TEST);
         p_fnglDisable(GL_BLEND);
      }
   }

now just change Code:
ColorEntry* c = colorList.get(51);

to any number (you don't have to use 51) and then when u put a different number go to color.cpp and add this Code:
add("wallhack" ,255,0,0      ); // index:51

and then in game go into console and type color wallhack blah blah blah and blah blah blah is standing for the color numbers u want..hope u enjoy!