Please can you tell me the code to change colour of the + symbol in Set Curriculum. Grey is not very clear to teachers.
Please try adding the given css in your wp-admin -> appearance -> customize -> custom css :
.create_course_content #course_curriculum .vibe_vibe_course_curriculum .add_element:after, .edit_course_content #course_curriculum .vibe_vibe_course_curriculum .add_element:after {
position: absolute;
top: 50%;
left: 50%;
margin: -32px 0 0 5px;
content: "\e05d";
font-family: fonticon;
font-size: 48px;
color: #4A4646 !important;
}