When installing Eclipse Galileo in Ubuntu 10.4 (Lucid Lynx). The
pop-up code assist/code completion box will appear dark pitch black.
This is because of the new themes in Ubuntu 10.4 (Lucid Lynx) has a dark tool-tip background
, which cause Eclipse Galileo’s code-assist to be dark black, shadowing the text on the tool-tip.
This can be solve by changing the background colour in Ubuntu. I’ve
tried changing the background colour in Eclipse but it doesn’t seems to
works. To change the background colour in Ubuntu, go to
System > Preferences > Appearance
“Appearance Preferences” panel shows up, click on “Customize…”.
“Customize Theme” shows up, go to “Colors” and select a lighter color for “Tooltips” Background, a darker color for “Tooltips” Text.
Start or restart Eclipse, you will see the the lighter colors you selected when the code-assist appears.
http://tipstank.com/2010/05/23/solve-eclipse-black-pop-up-code-assist-box-in-ubuntu-10-4-lucid/