styles/common.less contains duplicate padding and color values. Not sure which ones should be used:
position: absolute; top: 0; left: auto; right: 0; text-align: center; background-color: lighten(@c-graph-main, 65%); padding: 3px 10px; font-size: 12px; color: @colorGray5; color: @c-graph-main; font-weight: bold; display: none; border-radius: @borderRadius; padding: .4em .8em; border: 6px solid @colorWhite;