Further optimize color rounding algorithm
Further optimize color rounding algorithm

pebble/pebblejs,jiangege/pebblejs-project,sunshineyyy/CatchOneBus,daduke/LMSController,sunshineyyy/CatchOneBus,jiangege/pebblejs-project,pebble/pebblejs,jsfi/pebblejs,youtux/PebbleShows,jsfi/pebblejs,jiangege/pebblejs-project,fletchto99/pebblejs,demophoon/Trimet-Tracker,fletchto99/pebblejs,carlo-colombo/dublin-bus-pebble,daduke/LMSController,jiangege/pebblejs-project,youtux/PebbleShows,demophoon/Trimet-Tracker,youtux/PebbleShows,bkbilly/Tvheadend-EPG,demophoon/Trimet-Tracker,daduke/LMSController,daduke/LMSController,youtux/PebbleShows,bkbilly/Tvheadend-EPG,bkbilly/Tvheadend-EPG,fletchto99/pebblejs,bkbilly/Tvheadend-EPG,daduke/LMSController,jiangege/pebblejs-project,sunshineyyy/CatchOneBus,pebble/pebblejs,pebble/pebblejs,jsfi/pebblejs,pebble/pebblejs,carlo-colombo/dublin-bus-pebble,demophoon/Trimet-Tracker,bkbilly/Tvheadend-EPG,carlo-colombo/dublin-bus-pebble,jsfi/pebblejs,fletchto99/pebblejs,jsfi/pebblejs,sunshineyyy/CatchOneBus,carlo-colombo/dublin-bus-pebble,sunshineyyy/CatchOneBus,demophoon/Trimet-Tracker,carlo-colombo/dublin-bus-pebble,fletchto99/pebblejs