How to change avatars by rating and tier

You can override players' avatar by rating and tier system.

Open Create new room page in the Web-base Management System and find Bot Settings section.

{
    "avatarOverridingByTier" : true
}

Set avatarOverridingByTier option as true.

After that, find HElo Configuration section and edit:

"tier": {   
    "class_tier_1" : 500,
    "class_tier_2" : 700,
    "class_tier_3" : 800,
    "class_tier_4" : 900,
    "class_tier_5" : 1000,
    "class_tier_6" : 1150,
    "class_tier_7" : 1300,
    "class_tier_8" : 1450,
    "class_tier_9" : 1600
}

Set the rating score criteria for each tiers.

And then edit:

"avatar": {   
    "avatar_unknown" : "❔",
    
    "avatar_tier_new" : "🌱",
    "avatar_tier_1" : "🕳️",
    "avatar_tier_2" : "🥚",
    "avatar_tier_3" : "🐣",
    "avatar_tier_4" : "🐥",
    "avatar_tier_5" : "🥉",
    "avatar_tier_6" : "🥈",
    "avatar_tier_7" : "🥇",
    "avatar_tier_8" : "🏆",
    "avatar_tier_9" : "👑"
}

Set the avatars for each tiers.

If you want to change given chances of placement games, edit:

"factor": {
    "placement_match_chances" : 10,

    "factor_k_placement" : 50,
    "factor_k_normal" : 30,
    "facotr_k_replace" : 10
}

factor_k properties are important for rating calculation. Do not change these values without sufficient understand.

You have to build again for apply the changes.

More information

See also HElo Rating System.