Just see head image. Plugin makes glow effect on place of pickuped weapon and remove it when this weapon respawns. This effect you can see in the Half-Life Mod - Scientist Slaughterhouse.
ws_render <0..5> [1] - render type ws_renderfx <0..20> [19] - render fx ws_renderamt <0.0..255.0> [20.0] - glow amount ws_color <0..255> <0..255> <0..255> [random] - glow color ([random]) - random *LOL*