An improved version of ToolTipFix by kyrptonaught, with a few features that I thought were missing from the original mod

Before:

After:

What's been improved over the original mod:

Configurable text rapping width

You can change the maximum width that text wrapping can go to, no more tooltips that take half the screen

Improved sentence structure

Items with multiple sentences have spaces, tooltip text with indentations is (more or less) improved, there's still some stray text, but it's minimized as much as possible

Improved tooltip run-off

In vanilla Minecraft and the original mod, items with egregious amount of text make the tooltip run off in the upward direction rather than downward, simply speaking, items with long tooltips tend to clip off the top of the tooltip and show more of the description, now the tooltip run-off defaults downward, so you always (should) see the item name

Tooltip edge padding

Only a small thing but in the original mod, when a tooltip reaches the bottom it doesnt respect the tooltip border so you don't see the bottom of the tooltip, now it gives the tooltip a couple pixels of extra space from edge of the screen, letting you see the border better, definitely an improvement for Legendary Tooltips

On launch, the mod creates a "tooltipfix.json" configuration file with two settings:

{
  "maxTooltipWidth": 280, - Sets the maximum width of tooltip text wrapping
  "screenEdgePadding": 4 - Sets the amount of pixels the tooltip gets lifted to protect the bottom of the tooltip border
}

These changes aren't perfect but they're definitely an improvement over the original mod. I know that sentence structure in indented text sometimes has the last few words not indented and I tried as much as I could to minimize it.

All credit belongs to kyrptonaught, the original author, I just made a few changes I thought make the mod even better.