Some text in the Editor displays in a very small font size

Some of the text in the Cascade editor in 4.18 is very small compared to other text in the Cascade editor. This was seen on a MacBook Pro with Retina display. It appears to be related to high resolution displays, since I was not able to reproduce this on a display that is not a high resolution display (using a MacPro and Windows machine).

REGRESSION:
Yes. This behavior did not occur in 4.17.2.

1. Open a project in the Editor.
2. Create a new cascade particle system.
3. Open the new particle system.

RESULT:
The text for the components in the Particle Emitter section is very small (see attached screenshot). Other text in the Cascade editor appears normal.

EXPECTED:
The text throughout the Cascade editor is the same size.

Text is too small in some of the editor UI widgets on 4.18(Mac)

Text is too small in some of the editor UI widgets on 4.18(Mac)