Rewards
How often AFKPlus pays shards while a player stands in the zone.
Reward in config.yml is the idle payout. It is not the kill payout.
Reward:
Seconds: 60
Amount: 1
Permissions:
Fast:
Permission: afkplus.reward.fast
Seconds: 30
Amount: 1
Double:
Permission: afkplus.reward.double
Seconds: 60
Amount: 2Seconds is the wait between payouts. Amount is the shards added each time. The first matching permission wins. Anyone else uses the top-level Seconds and Amount.
While the player is inside, the action bar uses Minecraft.AfkActionBar in lang.yml. {bar} is the progress animation, {seconds} is the time left, {amount} and {currency} are the next payout. The chat line on payout is Minecraft.RewardGain.
A booster can shorten the wait or raise the amount. That stack is described on Boosters. The currency word in those messages is Currency.Name, default Shard.
Suggestions
Change Currency.Name if you do not want the word Shard, then match {currency} lines in lang.yml. Add a third block under Reward.Permissions only after you grant that permission node, as listed on Permissions.