Touch-Up Tooltips
This is a mod that improves the readability of item tooltips.
Before using the mod
All options are under the client config which can be found in your .minecraft folder
Long Tooltips Fix
By default, very long tooltips will overflow off the screen and become unreadable. This mod allows you to either shrink the tooltip until it fits the screen, or do a vertical autoscroll on the tooltip (configurable).
Using the autoscaler (set to 75% max zoom)
Using the autoscroller (set to 1) with the autoscaler (set to 75%)
Colors
The config also has options to change the tooltip border and background colors