
This is Inventory Insight.
And it looks like this, because you do not have enough screen space.
There is a settings for not using an extra window.
 I adjusted the "Show Info in Separate Frame"  setting to off and the lighter blue text was gone leaving only the darker blue/mauve text in the tooltip frame:
 I adjusted the "Show Info in Separate Frame"  setting to off and the lighter blue text was gone leaving only the darker blue/mauve text in the tooltip frame:
