diff --git a/phpBB/adm/index.php b/phpBB/adm/index.php
index 22537f6e8a..0f9ff7eaee 100644
--- a/phpBB/adm/index.php
+++ b/phpBB/adm/index.php
@@ -65,7 +65,6 @@ $template->set_custom_style(
 		$phpbb_admin_path . 'style',
 		$phpbb_root_path . 'styles/all/imgs/',
 		$phpbb_root_path . 'styles/all/template/',
-		$phpbb_root_path . 'styles/prosilver/imgs/',
 	],
 );
 
diff --git a/phpBB/adm/style/acp_forums.html b/phpBB/adm/style/acp_forums.html
index dc4a7cd1d4..672fbca780 100644
--- a/phpBB/adm/style/acp_forums.html
+++ b/phpBB/adm/style/acp_forums.html
@@ -473,12 +473,12 @@
 		<!-- BEGIN forums -->
 			<tr>
 				<td class="folder">
-					{{ Icon('svg', {
-						'link-variant' : forums.S_FORUM_LINK,
+					{{ Icon('font', {
+						'link' : forums.S_FORUM_LINK,
 						'lock' : forums.S_FORUM_LOCKED,
-						'file-document-box-multiple-outline' : forums.S_SUBFORUMS,
-						'file-document-box-outline' : true,
-					}, '', true, 'c-forum-row-icon') }}
+						'comments' : forums.S_SUBFORUMS,
+						'comment' : true,
+					}, '', true) }}
 				</td>
 				<td class="forum-desc">
 					<!-- IF forums.FORUM_IMAGE --><div style="float: {S_CONTENT_FLOW_BEGIN}; margin-right: 5px;">{forums.FORUM_IMAGE}</div><!-- ENDIF -->
diff --git a/phpBB/adm/style/acp_modules.html b/phpBB/adm/style/acp_modules.html
index 8d60796cb0..01d52a433d 100644
--- a/phpBB/adm/style/acp_modules.html
+++ b/phpBB/adm/style/acp_modules.html
@@ -133,11 +133,11 @@
 		<!-- BEGIN modules -->
 			<tr>
 				<td style="width: 5%; text-align: center;">
-					{{ Icon('svg', {
+					{{ Icon('font', {
 						'lock' : not modules.MODULE_ENABLED,
-						'file-document-box-multiple-outline' : modules.S_SUB_MODULE,
-						'file-document-box-outline' : true,
-					}, '', true, 'c-forum-row-icon', {'style' : 'width: 27px; height: 27px;'}) }}
+						'folder-tree' : modules.S_SUB_MODULE,
+						'folder-open' : true,
+					}, '', true, 'fas') }}
 				</td>
 				<td><a href="{modules.U_MODULE}">{modules.MODULE_TITLE}</a><!-- IF not modules.MODULE_DISPLAYED --> <span class="small">[{L_HIDDEN_MODULE}]</span><!-- ENDIF --></td>
 				<td style="width: 15%; white-space: nowrap; text-align: center; vertical-align: middle;">&nbsp;<!-- IF modules.MODULE_ENABLED --><a href="{modules.U_DISABLE}">{L_DISABLE}</a><!-- ELSE --><a href="{modules.U_ENABLE}">{L_ENABLE}</a><!-- ENDIF -->&nbsp;</td>
diff --git a/phpBB/adm/style/admin.css b/phpBB/adm/style/admin.css
index f6598331eb..0f88bcf84a 100644
--- a/phpBB/adm/style/admin.css
+++ b/phpBB/adm/style/admin.css
@@ -2965,6 +2965,11 @@ fieldset.permissions .permissions-switch {
 	font-style: normal;
 }
 
+.table1 .o-icon {
+	font-size: 20px;
+	padding: 10px 0;
+}
+
 .send-stats-data-row {
 	background: #f9f9f9;
 	border: #dedede 1px solid;