mcharest,
Sorry that you are seeing this issue. Thank you for the screenshots.
Can you please give us some more details to help us investigate further?
1. Eclipse version details from Help > About Eclipse section. Also share with us your OS and version details.
2. Go to Window > Preferences > DevStyle > Color Themes and share with us the selections for ‘Workbench theme’ and ‘Editor theme’.
3. Are you working with the latest version of Darkest Dark i.e 2017 CI 11? If no, then please update to CI 11 from Help > Check for Updates.
Apologies for inconvenience caused.
–Swapna
MyEclipse Support