change button color to avoid to confuse explain with execute
change button color to avoid to confuse explain with execute

yanagishima/yanagishima,yanagishima/yanagishima,dkazuma/yanagishima,gradleupdate/yanagishima,dkazuma/yanagishima,dkazuma/yanagishima,yanagishima/yanagishima,gradleupdate/yanagishima,dkazuma/yanagishima,gradleupdate/yanagishima,gradleupdate/yanagishima,yanagishima/yanagishima