Hello Pierre, Tim,
Something has changed with the MCH cloze question type that is affecting the display of background color. My Moodle XML quiz import file is attached.
When I import at my website running Moodle 1.9.3+ (Build: 20081126):
When I import the same file at the demo.moodle.org running Moodle 1.9.4+ (Build: 20090209):
What has changed?
Tieku