function()
    -- colors
    local col = {["red"] = "ff0000", ["yellow"] = "ffff00", ["green"] = "00ff00"}
    -- options display
    if WeakAuras.IsOptionsOpen() then return "|cff"..col.yellow.."3".."|r" end
    -- string to append and return
    local str = ""
    -- color for string
    local str_col = ""
    -- number of atonements
    local atonement_count = GetSpellCount(200829)
    -- abort if there is no atoned players
    --if atonement_count == 0 then return end
    -- group size
    local group_size = GetNumGroupMembers()
    -- raid or party?
    local group_type = IsInRaid() and "raid" or "party"
    -- count members who meet threshold
    local passed = 0
    -- get versatility for heals
    local vers = 1 + GetCombatRatingBonus(29) / 100
    -- get mastery
    local mastery = 1 + GetMasteryEffect() / 100
    -- get atonement transfer
    local atonement_heal = ((mastery * 40) / 100)
    -- Check artifact for sins of the many and 35+ traits
    local hasSins = false
    local paragon = 1
    local loaded = IsAddOnLoaded("LibArtifactData-1.0") or LoadAddOn("LibArtifactData-1.0")
    if loaded then
        aura_env.LAD = aura_env.LAD or LibStub("LibArtifactData-1.0")
        if not aura_env.LAD:GetActiveArtifactID() then
            aura_env.LAD:ForceUpdate()
        end
        local _, traits = aura_env.LAD:GetArtifactTraits()
        if traits then
            for _,v in ipairs(traits) do
                if v.spellID == 198074 then
                    hasSins = true
                elseif v.spellID == 214925 then
                    if v.currentRank > 0 then
                        paragon = 1 + (((v.currentRank - 1) * 0.005) + 0.05)
                    end
                end
            end
        end
    end
    -- sins of the many
    local sins = hasSins and 1 + (atonement_count / 100) or 1
    -- twist of fate
    local tof = UnitBuff("player", GetSpellInfo(109142)) and 1.2 or 1
    -- get smite heal from atonement
    local smite_heal = GetSpellBonusDamage(7) * 2.25 * 2 * vers * atonement_heal * 1.15 * tof * sins * paragon
    -- loop through party
    for i = 1, group_size do
        -- get unit id etc "raid2"
        local unit_id = group_type .. i
        if UnitBuff(unit_id, GetSpellInfo(81749), nil, "PLAYER") then
            -- get unit health defecit
            local health_defecit = UnitHealthMax(unit_id) - UnitHealth(unit_id)
            -- check if unit's hp is under or equal to a critical smite heal
            if health_defecit >= smite_heal then
                -- unit passed, add one to the passed variable
                passed = passed + 1
            end
        end
    end
    -- get percent of atoned targets under the threshold
    local passed_over_atonement = passed / (atonement_count > 0 and atonement_count or 1)
    -- check if count is over thresh
    if atonement_count == 0 then
        str_col = col.red
    elseif passed_over_atonement >= aura_env.options.green then
        str_col = col.green
    elseif passed_over_atonement < aura_env.options.green and passed_over_atonement >= aura_env.options.yellow then
        str_col = col.yellow
    else
        str_col = col.red
    end
    -- return string with color
    return "|cff"..str_col..atonement_count.."|r"
end