diff --git a/visualize.py b/visualize.py
index 9287d03..b68757b 100755
--- a/visualize.py
+++ b/visualize.py
@@ -18,6 +18,12 @@ icon_overrides = {
     "woodpecker": None,
 }
 
+icon_format = {
+    "linkwarden": "webp",
+    "telegraf": "webp",
+    "tiny-tiny-rss": "webp",
+}
+
 template_host = """
 'serguzim.net'.{host}: {{
     label: {host}
@@ -28,7 +34,7 @@ template_service = """
 {key}: {{
     label: {label}
     label.near: top-left
-    icon: https://cdn.jsdelivr.net/gh/selfhst/icons/webp/{icon}.webp
+    icon: {icon}
     icon.near: top-right
 }}
 """
@@ -53,6 +59,11 @@ external: {
 }
 """
 
+def get_icon(svc):
+    svc = icon_overrides.get(svc, svc) or 'docker'
+    fmt = icon_format.get(svc, 'svg')
+    return f'https://cdn.jsdelivr.net/gh/selfhst/icons/{fmt}/{svc}.{fmt}'
+
 def service_key(svc, data):
     return f"'serguzim.net'.{data['host']}.{svc}"
 
@@ -95,7 +106,7 @@ def parse_services(services):
         result.append(template_service.format(
             key=svc_key,
             label="\\n".join([svc] + domains),
-            icon=icon_overrides.get(svc, svc) or "docker",
+            icon=get_icon(svc)
         ))
 
         for backup in data.get("backup") or []: