Question

Possible Duplicate:
Is it possible to make Eclipse's code-folding gutter black?

The white line was invisible on default color scheme but when I applied different color scheme it appeared ..

The white line contains code folding buttons also ..

Answer 1

Taken from this thread:

“After you change the background color of the editor, disable then
re-enable code folding and click apply this seems to fix the color
problem however keeps that ugly white line separator.”

or

“First disable folding by default (preferences->C++->Editor->Folding)
for new editors.

Then, whenever you open a new editor the folding ‘column’ wont be
available.

Now, open a new editor, rt-click on the far left of the text (the line
numbers if they’re enabled) and select ‘enable folding’ (or press ctrl
+ numpad-divide).

Then, anything that is to be folded by default will be folded and the
folding +’s and -‘s will be available on the dark background – no
colour glitches”.