add magenta color for log app env
add magenta color for log app env

Qihoo360/thinkjs,akira-cn/thinkjs,75team/thinkjs,maxzhang/thinkjs,akira-cn/thinkjs,maxzhang/thinkjs,75team/thinkjs,maxzhang/thinkjs,akira-cn/thinkjs,75team/thinkjs,thinkjs/thinkjs,snadn/thinkjs