diff --git a/dashboard/web/pages/SignIn.css b/dashboard/web/pages/SignIn.css
index dae08c77e2b8e98f2099a37003e827feac483303..842f49ab6883c7c9223c0847f94199ed5126fe25 100644
--- a/dashboard/web/pages/SignIn.css
+++ b/dashboard/web/pages/SignIn.css
@@ -9,5 +9,22 @@ body { font: 16px "Name Sans", sans-serif; }
 .pf-v5-c-login__main .checkbox label:has(:focus-visible) { outline: 2px solid var(--primary); }
 .setup-intro { margin-bottom: 1rem; text-align: center; }
 .guest-providers { margin-top: 1.5rem; }
-.guest-providers a { display: flex; align-items: center; justify-content: center; text-decoration: none; }
+.pf-v5-c-login__main .guest-providers a {
+  display: grid;
+  grid-template-columns: 20px minmax(0, 1fr) 20px;
+  align-items: center;
+  height: 36px;
+  padding: 0 12px;
+  text-align: center;
+  text-decoration: none;
+  line-height: 1.2;
+  transition: background-color .12s;
+}
+.guest-providers a[data-provider="astheno"] { background-color: #3c4a29; color: white; }
+.guest-providers a[data-provider="astheno"]:hover { background-color: #4d5e35; }
+.guest-providers a[data-provider="github"] { background-color: white; color: #24292f; border: 1px solid #d1d9e0; }
+.guest-providers a[data-provider="github"]:hover { background-color: #f0f3f6; }
+.guest-providers a:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; }
+.guest-providers svg, .guest-providers img { display: block; }
+@media (prefers-reduced-motion: reduce) { .guest-providers a { transition: none; } }
 .guest-providers a + a { margin-top: .75rem; }
diff --git a/dashboard/web/pages/SignIn.tsx b/dashboard/web/pages/SignIn.tsx
index b9d150109da962c3169cb186cd1afd0dd4d71932..af65408853e5ae51397da4915000cbf685ed9726 100644
--- a/dashboard/web/pages/SignIn.tsx
+++ b/dashboard/web/pages/SignIn.tsx
@@ -1,5 +1,7 @@
 import { createEffect, createResource, createSignal, For, onCleanup, onMount, Show } from "solid-js";
 import { authReason, authRequest } from "../auth.ts";
+import Stone from "lucide-solid/icons/stone";
+import githubIcon from "../sso/github.svg";
 import theme from "../sso/css/styles.css?inline";
 import adjustments from "./SignIn.css?inline";
 
@@ -110,7 +112,7 @@ export function SignIn() {
               <Show when={!setup}><a id="authenticateWebAuthnButton" href="#" class="pf-v5-c-button pf-m-secondary pf-m-block" aria-disabled={busy() || !status()} onClick={(event) => { event.preventDefault(); void passkey(); }}>sign in with passkey</a></Show>
               <Show when={!setup && status()?.providers?.length}>
                 <div id="kc-social-providers" class="guest-providers">
-                  <For each={status()?.providers}>{(provider) => <a rel="external" class="pf-v5-c-button pf-m-primary pf-m-block" href={`/auth/guest/start/${provider.id}?next=${encodeURIComponent(params.get("next") ?? "")}`}>continue with {provider.name}</a>}</For>
+                  <For each={status()?.providers}>{(provider) => <a rel="external" data-provider={provider.id} class="pf-v5-c-button pf-m-primary pf-m-block" href={`/auth/guest/start/${provider.id}?next=${encodeURIComponent(params.get("next") ?? "")}`}>{provider.id === "astheno" ? <Stone size={18} aria-hidden="true" /> : <img src={githubIcon} width="18" height="18" alt="" />}<span>continue with {provider.name}</span></a>}</For>
                 </div>
               </Show>
             </Show>
diff --git a/dashboard/web/sso/github.svg b/dashboard/web/sso/github.svg
new file mode 100644
index 0000000000000000000000000000000000000000..7783c79ba36340f954484f87191864b96d3aaf35
--- /dev/null
+++ b/dashboard/web/sso/github.svg
@@ -0,0 +1,25 @@
+<!--
+MIT License
+
+Copyright (c) 2026 GitHub Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+-->
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><path d="M6.766 11.328c-2.063-.25-3.516-1.734-3.516-3.656 0-.781.281-1.625.75-2.188-.203-.515-.172-1.609.063-2.062.625-.078 1.468.25 1.968.703.594-.187 1.219-.281 1.985-.281.765 0 1.39.094 1.953.265.484-.437 1.344-.765 1.969-.687.218.422.25 1.515.046 2.047.5.593.766 1.39.766 2.203 0 1.922-1.453 3.375-3.547 3.64.531.344.89 1.094.89 1.954v1.625c0 .468.391.734.86.547C13.781 14.359 16 11.53 16 8.03 16 3.61 12.406 0 7.984 0 3.563 0 0 3.61 0 8.031a7.88 7.88 0 0 0 5.172 7.422c.422.156.828-.125.828-.547v-1.25c-.219.094-.5.156-.75.156-1.031 0-1.64-.562-2.078-1.609-.172-.422-.36-.672-.719-.719-.187-.015-.25-.093-.25-.187 0-.188.313-.328.625-.328.453 0 .844.281 1.25.86.313.452.64.655 1.031.655s.641-.14 1-.5c.266-.265.47-.5.657-.656"/></svg>
\ No newline at end of file