Appleskin 1.8.9

: While holding a food item, your HUD hunger and health bars will flash to show the potential gain from eating it.

Version 1.8.9 is widely considered the "final stable build" for competitive PvP before the 1.9 "Combat Update" changed sword mechanics (adding cooldowns and sweeping attacks). Consequently, a massive portion of the player base refused to update past 1.8.9. appleskin 1.8.9

Adds a yellow overlay to your hunger bar to show saturation levels. : While holding a food item, your HUD

showFoodValuesHudOverlay : Toggle the flashing preview on the hunger bar. : While holding a food item

The original source of these features for older versions.