Github user lff0305 commented on the issue:
https://github.com/apache/jmeter/pull/305
For your questions
1. I am using windows 10 Pro;
2. Yes, I agree with you that JTextArea in other places should be fixed,
too. But for now The logger panel was the most important, so I fixed it
3. I agree with you that it's good to use The same implementation; But I
have seen some bugs

And another reason is, on my 2K monitor, the UI looks good (I already
scaled in Windows Settings). But the font size of the logger panel is too small
(Seems not scaled). That's why I add the button for setting the font size.
Thanks.
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