Darkest Dark 2017 CI 7 and Oxygen 4.7
Go to Window > Preferences > General and enable ‘Show heap status’. Apply the changes and notice that the current heap status is displayed in the lower right corner of the IDE.
Part of the display is dark font on dark background making it unreadable :
The heap status display is fine in Neon 3 : https://gyazo.com/d8df1564bf9e9cce9f7a885d9d77f3d0