Subject: bug#41221: Add some ediff faces to misterioso theme to improve readability

From: Simon Lang <[email-masked]>
Date: Tue, 12 May 2020 22:18:00 +0000

This fix adds ediff faces for 

ediff-even-diff-A
ediff-even-diff-B
ediff-odd-diff-A
ediff-odd-diff-B