Whole preedit area is black

[greener]

Hi,

In both emacs 23.4 with ibus-el 0.3.0 and emacs 24.3 with ibus-el 0.3.2:

The whole preedit area is totally black while typing a letter which has several possible outcomes (see attachment). Greek vowels may have accents, so if I press:

nea/n

Then what you would expect to see is:

ν -> νε -> νεα -> νεά -> νεάν

which you actually do see in gedit, for exampel.
In emacs, however, I see:

ν -> ν█ -> νε█ -> νε█ -> νεάν

If I press a'/ I see:

█ -> █ -> ἄ

It would be nice if the preedit area was just underlined, had inverted colours or did something more readable while still indicatiing that more options are available.
I am not sure preedit area is what is having an issue here, but so it seems to me...

This happens in both normal and client mode.

Other input methods than m17n:grc:mizuochi have the same issue.

I tested emacs 23 in a clean debian wheezy, while emacs24 is tested in a debian wheezy where I have pulled in emacs, ibus and ibus-el from sid.

Here is info on my current mixed system:

ii ibus 1.5.1.is.1.4.2-1
ii ibus-clutter:amd64 0.0+git20090728.a936bacf-5
ii ibus-el 0.3.2-1
ii ibus-gtk:amd64 1.5.1.is.1.4.2-1
ii ibus-gtk3:amd64 1.5.1.is.1.4.2-1
ii ibus-m17n 1.3.4-1
ii ibus-qt4 1.3.1-2.1
ii ibus-table 1.5.0.is.1.4.99.1-1
ii ibus-table-ipa-x-sampa 1.3.0.20100528-3
ii ibus-xkbc 1.3.3.20100922-2

ii emacs 45.0
ii emacs-goodies-el 35.4
ii emacs-intl-fonts 1.2.1-8
ii emacs23 23.4+1-4
ii emacs23-bin-common 23.4+1-4
ii emacs23-common 23.4+1-4
ii emacs23-common-non-dfsg 23.4+1-1
ii emacs24 24.3+1-1
ii emacs24-bin-common 24.3+1-1
ii emacs24-common 24.3+1-1
ii emacs24-common-non-dfsg 24.2+1-1
ii emacsen-common 2.0.5
ii org-mode 7.9.2-1

[greener (greener)]

A workaround for emacs 24: Load a dark theme, for example "tango-dark". Then the letters are visible against the black preedit background. Bliss!

You could put in your .emacs file:
(load-theme 'tango-dark)

In my bug report it might sound as if this problem occurs for all input methods, but not so: just fore some, like m17n:grc:mizuochi.