This is a simple quality of life mod that lets you see the contents of a container, as well as its remaining capacity in the interact hover text.
You can configure the following:
Maximum entries to show - default '-1', meaning unlimited
Sort type - Name, Value, or Weight - default 'Value'
Sort ascending - default 'false'
Entry text - default '<color=#AAAAAAFF>{0} {1}</color>' ({0} is replaced by the amount and {1} is replaced by the item name)
Overflow text - if more items than max entries - default '<color=#AAAAAAFF>...</color>'
Capacity text - default '<color=#FFFFAAFF> {0}/{1}</color>' ({0} is replaced by the slots used and {1} is replaced by total slots)
Colors are RRGGBBAA hexadecimal (Alpha doesn't seem to do anything). For example, to get the colors in the first screenshot:
'EntryText = <color=#FFFFAAFF>{0}</color> <color=#AAFFAAFF>{1}</color>'
Apparently if you use BetterUI, you need to set the following in the BetterUI config file:
'chestHasRoomStyle = 0'
AedenthornModding-ShowContainerContents-0.4.0.zip.