MannixMD

diff --git a/template/event/overall_header_content_before.html b/template/event/overall_header_content_before.html
index d3ca985..2bad473 100644
--- a/template/event/overall_header_content_before.html
+++ b/template/event/overall_header_content_before.html
@@ -9,6 +9,7 @@
 				<i class="icon fa-fw fa-times"></i>
 			</a>
 		{% endif %}
+		<button id="phpbb_announcement_close"><i class="icon fa-minus-square fa-fw" aria-hidden="true"></i></button>
 		<div>{{ announcement.BOARD_ANNOUNCEMENT }}</div>

MannixMD

function componentToHex(c) {
    var hex = c.toString(16);
    return hex.length == 1 ? "0" + hex : hex;
}

function rgbToHex(r, g, b) {
    return "#" + componentToHex(r) + componentToHex(g) + componentToHex(b);
}

function invert(rgb) {