All indicators have numerical values displayed on them.
Custom indicators [2]
The "H" indicator is for the Satiety (first number) and Food Efficiency (second number).
The "F" indicator is for FEP (displaying current / max FEPs)
Numerical values for buffs [3]
Buffs have numerical values displayed on them where applicable.
Astronomy tracking [4]
When hovering over the astronomy icon you can see the current day (ingame, since the world start), time (ingame), season (with estimation till the end), and the moon phase.
Alternative character indicators
Can be enabled via "Options" -> "Interface" -> "Custom HP/Stamina/Energy bars".
All the indicators are draggable separately (hold alt while dragging them).
The width is configurable by doing Alt + Mouse Wheel over the indicator.