After installing this module i had the problem that most of the JPGs weren't displayed.
Now, I have figured out the problem: The path to the images was wrong.
I changed the styles.php into this and now it works flawless:
div.frontside {
background-image: url('<?php echo $CFG->wwwroot ?>/mod/flashcard/pix/front.jpg');
height: 201px;
width: 307px
}
div.backside {
background-image: url('<?php echo $CFG->wwwroot ?>/mod/flashcard/pix/back.jpg');
height: 201px;
width: 307px
}
div.finished {
background-image: url('<?php echo $CFG->wwwroot ?>/mod/flashcard/pix/finished.jpg');
height: 201px;
width: 307px
}
.emptyset {
color: red;
}
.graphdeck{
background-image: url('<?php echo $CFG->wwwroot ?>/mod/flashcard/pix/cardslice.png');
background-repeat: repeat-y;
}
.error{
color: red;
}
.bar{
background-image: url('<?php echo $CFG->wwwroot ?>/mod/flashcard/pix/men.png');
background-repeat: repeat-x;
border: solid 1px #0B2386;
}