refactor(about): changing background color of about header
refactor(about): changing background color of about header

francarmona/ionice-contryside-events-app,subsolo/ITHC,aayushkapoor206/whatshot,nReality/AgileAfricaConf-app,nReality/AgileAfricaConf-app,nReality/SUGSA-ScrumGathering-App2016,nReality/SUGSA-ScrumGathering-App2016,nReality/AgileAfricaConf-app,Beslinda/catalogIonicApp,aayushkapoor206/whatshot,nReality/SUGSA-ScrumGathering-App2016,AlexFine/ionic-conference-app,nReality/SUGSA-ScrumGathering-App2016,sinholic/aero-flyer,aayushkapoor206/whatshot,fmsouza/mangiare,aayushkapoor206/whatshot,abdolmajidazad/neveshtak,minhlong/NamHoa-Ionic,kumarnavinrai/finalmcu,fmsouza/mangiare,ericel/weytindey,nReality/SUGSA-ScrumGathering-App2016,tommy-boy/AMZNDEALS,Beslinda/catalogIonicApp,TobiasSchaeuble/HMAD,kumarnavinrai/finalmcu,subsolo/ITHC,AlexFine/ionic-conference-app,kumarnavinrai/finalmcu,minhlong/NamHoa-Ionic,pierrecabriere/Greencharge,nReality/AgileAfricaConf-app,laodice/ionic-conference-app-session2,fmsouza/mangiare,Beslinda/catalogIonicApp,TobiasSchaeuble/HMAD,laodice/ionic-conference-app-session2,abdolmajidazad/neveshtak,driftyco/ionic-conference-app,francarmona/ionice-contryside-events-app,aayushkapoor206/whatshot,sinholic/aero-flyer,ericel/weytindey,AlexFine/ionic-conference-app,ziggyJ/ionic-conference-app,francarmona/ionice-contryside-events-app,nReality/AgileAfricaConf-app,driftyco/ionic-conference-app,pierrecabriere/Greencharge,pierrecabriere/Greencharge,laodice/ionic-conference-app-session2,tommy-boy/AMZNDEALS,nReality/AgileAfricaConf-app,TobiasSchaeuble/HMAD,ziggyJ/ionic-conference-app,nReality/SUGSA-ScrumGathering-App2016,abdolmajidazad/neveshtak,ericel/weytindey,sinholic/aero-flyer,nReality/AgileAfricaConf-app,fmsouza/mangiare,subsolo/ITHC,minhlong/NamHoa-Ionic,driftyco/ionic-conference-app,nReality/SUGSA-ScrumGathering-App2016,AlexFine/ionic-conference-app,tommy-boy/AMZNDEALS