Eclipse-Mars on Linux: Black Background Color in Tooltip's

Eclipse Mars hover over methods is black after update

The best workaround I have is this:

export SWT_GTK3=0

before starting eclipse. (You can also do: SWT_GTK3=0 ./eclipse)

Alternatively, you can now also do:

./eclipse --launcher.GTK_version 2

I found all GTK3 modes to be barely usable, and in a mess.

The "dark" (emo) mode still works somewhat, because there seem to be some hardcoded colors somewhere (ouch). I wish they would test better. This is just unusable. And I wish the GNOME people would stop breaking their stuff all the time, too. I hate everything they have been doing the last few years... they are totally designing their UI for a different audience than developers.

When trying out different themes/engines always restart eclipse completely (not using the "restart" menu) to make sure to pick up new environment variables etc.

You can set this as default, by adding export SWT_GTK3=0 into your $HOME/.profile which will usually be read on login (i.e. this will only be effective if you logout and login again).

Eclipse javadoc background color is black

You need to change the 'Tooltip' color in Ubuntu at the OS level.

Is there a way to change some special GUI colors in eclipse?

Ok. Found the solution for my problem on following site:

http://www.jroller.com/andyl/entry/mars_on_linux

Mars is the first eclipse version which uses GTK3 (instead of GTK2 like eclipse versions before 4.5). And on the side above Andrey Loskutov wrotes that may be also the GTK theme (widget style) can be also the problem. The Widget style "oxygen-gtk" should be extremly buggy! After changing the widget style (to now "Adwaida") the problems are gone :-)

You can change the Widget style in KDE by opening in the KDE settings: "Application Appearance" and "GTK+ Appearance".

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