flexprop 7.2.1 on macOS: Compile error line hilighting makes the text unreadable when Mac is set to Dark mode

[dgately]

When the Mac is set to the Dark Appearance mode, compile error highlighting (bright yellow text background) makes the line unreadable.

Steps:

1. Create some source that has an error when compiled (a syntax error is easy to create).
2. In the console select the linked text that describes which where the compile error takes place.
3. The code edting box will highlight the line of code where the error takes place.

The result:

WHen the Mac is in Light Appearance mode, this does not occur (actually, there is no syntax coloring in the source code, anyway).