diff --git a/modules/slack/client.js b/modules/slack/client.js
index b23d04c..1fa6187 100644
--- a/modules/slack/client.js
+++ b/modules/slack/client.js
@@ -812,7 +812,7 @@ function createTranscriptTile({ root, moduleApi }) {
 
   /** A message or a thread reply as one row; returns the row and its body (replies nest in the body). */
   function buildLine(m, reply = false) {
-    const line = el('div', reply ? 'sl-reply' : 'sl-msg');
+    const line = el('div', reply ? 'sl-reply' : 'sl-row');
     line.dataset.ts = m.ts;
     line.classList.toggle('sl-me', Boolean(m.me));
     line.classList.toggle('sl-bot', Boolean(m.bot));
@@ -876,7 +876,7 @@ function createTranscriptTile({ root, moduleApi }) {
     });
   }
   entriesEl.addEventListener('contextmenu', (e) => {
-    const line = e.target.closest('.sl-msg, .sl-reply');
+    const line = e.target.closest('.sl-row, .sl-reply');
     if (!line || !entriesEl.contains(line)) return;
     const m = messagesByTs.get(line.dataset.ts);
     if (!m) return;
diff --git a/modules/slack/module.json b/modules/slack/module.json
index 2bdd632..544adf6 100644
--- a/modules/slack/module.json
+++ b/modules/slack/module.json
@@ -117,8 +117,9 @@
     },
     "showSystem": {
       "type": "switch",
-      "label": "System lines",
-      "default": true
+      "label": "Channel notices",
+      "default": true,
+      "help": "Joins, leaves, topic changes, pins and other housekeeping lines."
     }
   }
 }
diff --git a/modules/slack/style.css b/modules/slack/style.css
index 5f03547..d84fa99 100644
--- a/modules/slack/style.css
+++ b/modules/slack/style.css
@@ -87,8 +87,9 @@
   to   { opacity: 1; transform: none; }
 }
 
-/* one row: the picture, then everything else */
-[data-module="slack"] .sl-msg,
+/* one row: the picture, then everything else (.sl-row — .sl-msg is the
+   send tile's status line, a different thing) */
+[data-module="slack"] .sl-row,
 [data-module="slack"] .sl-reply {
   display: flex;
   align-items: flex-start;
@@ -153,10 +154,8 @@
   font-variant-numeric: tabular-nums;
 }
 [data-module="slack"] .sl-wrap:not(.show-times) .sl-time { display: none; }
-[data-module="slack"] .sl-wrap:not(.show-names) .sl-msg > .sl-meta,
-[data-module="slack"] .sl-wrap:not(.show-names) .sl-reply > .sl-meta { display: none; }
-[data-module="slack"] .sl-wrap.show-times:not(.show-names) .sl-msg > .sl-meta,
-[data-module="slack"] .sl-wrap.show-times:not(.show-names) .sl-reply > .sl-meta { display: flex; }
+[data-module="slack"] .sl-wrap:not(.show-names) .sl-body > .sl-meta { display: none; }
+[data-module="slack"] .sl-wrap.show-times:not(.show-names) .sl-body > .sl-meta { display: flex; }
 [data-module="slack"] .sl-wrap.show-times:not(.show-names) .sl-name { display: none; }
 [data-module="slack"] .sl-wrap:not(.show-system) .sl-entry.sl-system { display: none; }