Scoreboards, boss bars, tab list

Sidebars, objectives, boss bars, titles, the tab list, nametags and the below-name line.

Type	Kind	Description
Belowname	class	Text (and optionally a number) shown under a player’s name, per viewer.
BossBar	class	A boss bar at the top of the screen, shown to the players who were added as viewers.
BossBarColor	enum	The colour of a boss bar.
BossBarFlags	enum	Extra behaviour of a boss bar.
BossBars	class	Creates boss bars owned by a plugin (plugin.BossBars).
BossBarStyle	enum	How a boss bar is divided.
DisplaySlot	enum	Where an objective is displayed.
NametagCollision	enum	Who a player collides with (bumps into).
Nametags	class	Nametag styles per viewer: a prefix and a suffix around a player’s name, a team colour, and the rules for seeing and bumping the team’s players.
NametagStyle	class	The look of a nametag for one viewer (see Nametags.Set).
NametagVisibility	enum	Who sees a nametag.
Objective	class	An objective of the server scoreboard (the one /scoreboard edits and the world saves): scores per holder name, shown in a display slot.
PresenceExtensions	class	The presence API of a plugin: plugin.Tablist, plugin.Nametags and plugin.Belowname, on the plugin base class and on the plugin context.
Scoreboard	class	The server’s scoreboard (shared by all players, saved with the world, edited by /scoreboard): objectives with scores per holder name and their display slots.
ScoreFormat	enum	How a score is shown next to its holder.
Sidebar	class	A sidebar scoreboard (the list of lines at the right of the screen) shown to chosen players.
Sidebars	class	Creates sidebars owned by a plugin (plugin.Sidebars).
TabEntry	class	The fields of one player’s tab entry for one viewer.
Tablist	class	The tab list as one viewer sees it: the name, order, latency and game mode of each player in the list, the header and footer, fake entries (extra slots with their own name and skin) and the objectives shown in the list or under the names.
TitleTimes	struct	The timings of a title, in ticks (20 per second).