Updated Annotation controller to assign "selected" class to buttons when they get clicked on, for use in custom css.
<?php
$data = json_decode(file_get_contents("php://input"));
if (!isset($data->annotations[0]->id)) {
$data->annotations[0]->id = uniqid("annotation_");
}
if (!isset($data->annotations[0]->type)) {
$data->annotations[0]->type = uniqid("annotationType_");
}
print_r(json_encode($data));
?>