remove pgn4web hardcoded background colors
remove pgn4web hardcoded background colors

bjhaid/lila,terokinnunen/lila,elioair/lila,terokinnunen/lila,luanlv/lila,pawank/lila,systemovich/lila,JimmyMow/lila,ccampo133/lila,samuel-soubeyran/lila,r0k3/lila,clarkerubber/lila,pavelo65/lila,Enigmahack/lila,luanlv/lila,bjhaid/lila,JimmyMow/lila,bjhaid/lila,TangentialAlan/lila,systemovich/lila,samuel-soubeyran/lila,r0k3/lila,danilovsergey/i-bur,Enigmahack/lila,ccampo133/lila,Enigmahack/lila,TangentialAlan/lila,elioair/lila,Happy0/lila,abougouffa/lila,systemovich/lila,ccampo133/lila,Unihedro/lila,systemovich/lila,Unihedro/lila,Unihedro/lila,pawank/lila,danilovsergey/i-bur,TangentialAlan/lila,abougouffa/lila,Happy0/lila,systemovich/lila,r0k3/lila,TangentialAlan/lila,Unihedro/lila,Enigmahack/lila,Enigmahack/lila,clarkerubber/lila,samuel-soubeyran/lila,Unihedro/lila,JimmyMow/lila,abougouffa/lila,TangentialAlan/lila,systemovich/lila,pawank/lila,luanlv/lila,clarkerubber/lila,bjhaid/lila,abougouffa/lila,pawank/lila,TangentialAlan/lila,terokinnunen/lila,JimmyMow/lila,r0k3/lila,abougouffa/lila,arex1337/lila,samuel-soubeyran/lila,terokinnunen/lila,terokinnunen/lila,ccampo133/lila,Enigmahack/lila,Happy0/lila,Happy0/lila,JimmyMow/lila,pavelo65/lila,clarkerubber/lila,pavelo65/lila,pawank/lila,Unihedro/lila,samuel-soubeyran/lila,arex1337/lila,Unihedro/lila,samuel-soubeyran/lila,elioair/lila,ccampo133/lila,r0k3/lila,arex1337/lila,TangentialAlan/lila,systemovich/lila,arex1337/lila,clarkerubber/lila,terokinnunen/lila,r0k3/lila,pavelo65/lila,Happy0/lila,JimmyMow/lila,elioair/lila,bjhaid/lila,luanlv/lila,terokinnunen/lila,luanlv/lila,danilovsergey/i-bur,abougouffa/lila,clarkerubber/lila,bjhaid/lila,elioair/lila,ccampo133/lila,pawank/lila,bjhaid/lila,pavelo65/lila,luanlv/lila,danilovsergey/i-bur,samuel-soubeyran/lila,elioair/lila,r0k3/lila,danilovsergey/i-bur,clarkerubber/lila,arex1337/lila,luanlv/lila,pavelo65/lila,Happy0/lila,pawank/lila,elioair/lila,arex1337/lila,Enigmahack/lila,arex1337/lila,abougouffa/lila,JimmyMow/lila,danilovsergey/i-bur,pavelo65/lila,ccampo133/lila,danilovsergey/i-bur,Happy0/lila