diff --git a/app/Resources/static/themes/_global/img/logo-square.png b/app/Resources/static/themes/_global/img/logo-square.png
deleted file mode 100644
index d5e059776..000000000
Binary files a/app/Resources/static/themes/_global/img/logo-square.png and /dev/null differ
diff --git a/app/Resources/static/themes/_global/img/logo-square.svg b/app/Resources/static/themes/_global/img/logo-square.svg
new file mode 100644
index 000000000..7b87fedcd
--- /dev/null
+++ b/app/Resources/static/themes/_global/img/logo-square.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200"><path fill="none" d="M0 0h200v200H0z"/><path d="M75.899 72.438c1.597-.981 10.207-5.556 24.098.178 14.289 5.897 23.154.776 24.253.079-3.454-5.678-7.562-10.62-12.104-13.943.303-.083.612-.167.939-.263 6.023-1.742 7.553-6.842 7.875-11.21.364-4.954.616-5.03 1.692-9.487 1.032-4.281-.119-5.137-1.181-4.273-.572.465-5.552 1.616-8.505 3.919-4.768 3.72-7.707 10.794-9.039 14.706-.025.06-.205.604-.265.792-.621 1.498-1.857 1.494-1.857 1.494v.001c-.6-.065-1.202-.1-1.809-.1-.54 0-1.079.029-1.616.081-.012.002-.019 0-.031.001-1.581.233-2.45-1.697-2.632-2.157-1.847-5.304-6.816-15.763-17.984-18.577 0 0-2.028-1.554-1.41 1.074.588 2.511 1.804 5.049 1.534 8.741-.124 1.704-1.181 10.442 6.85 14.99.763.432 1.441.795 2.051 1.101-4.042 3.235-7.716 7.74-10.859 12.853zM128.626 152.353c-9.842-6.098-13.153-8.242-12.946-10.575 0 0 .002-.379.099-.957.239-1.236.995-3.348 3.407-4.552.079-.039.146-.084.208-.129 7.668-4.45 13.27-11.614 15.246-20.56-1.99 4.941-16.735 8.78-34.645 8.78-17.903 0-32.651-3.839-34.641-8.78.442 2.008 1.073 3.923 1.864 5.742.666 3.745 1.562 12.563-2.673 20.282-3.731 6.8-22.15 16.069-49.485 10.748 0 0-1.096-.766-1.428-.136-.491.932 1.517 1.685 3.583 2.229 19.031 5.04 47.756 2.989 56.777-4.443 4.116-3.388 5.704-7.953 6.107-12.865l.003.008s.11-1.287 1.719-.32c.461.277 2.125 1.36 2.39 2.585.232 1.743.248 3.883-.652 5.382-1.287 2.144-1.301 2.452.393 3.662 1.04.742 5.287 3.864 11.198 7.415.015.01.023.019.038.027 1.25.753 2.987 2.597 2.987 2.597 2.662 3.079 8.452 9.275 10.972 8.108 1.19-.551-.051-3.032-.051-3.032s1.98 2.571 3.043 1.694c.809-.668-.473-3.229-.473-3.229s1.729 1.499 2.757.944c1.258-.679-.187-4.614-10.079-10.627-9.896-6.018-12.578-6.94-12.814-9.626 0 0-.004-.135.004-.366.077-.593.414-1.847 1.852-1.712 2.141.346 4.348.531 6.608.531 2.587 0 5.107-.237 7.536-.69l.001.003s.127-.025.164-.031c.284-.036.838-.018.84.671-.09.873-.331 1.751-.845 2.519-1.447 2.168-.972 2.466.54 3.859.933.859 5.211 4.622 11.07 8.264.012.009.017.016.031.023 1.249.752 3.41 2.816 3.41 2.816v-.001c2.428 2.466 6.894 6.596 9.327 6.347 1.646-.168.306-3.002.306-3.002s2.078 2.006 3.099 1.416c1.142-.659-.474-2.755-.474-2.755s1.338.708 2.283.473c.948-.236 1.185-2.644-8.656-8.737z"/><path d="M117.631 83.452c-1.181 0-2.161.355-2.912 1.057-.76.71-1.144 1.531-1.144 2.438v16.056c0 2.154-.382 3.742-1.135 4.721-.728.946-1.892 1.406-3.556 1.406-1.703 0-2.863-.457-3.549-1.396-.716-.979-1.078-2.571-1.078-4.731V86.884c0-1.098-.5-1.996-1.448-2.596-1.289-.812-2.57-1.105-4.129-.587-.476.159-.924.366-1.333.615-.435.265-.802.597-1.093.985-.322.432-.486.901-.486 1.396v16.307c0 2.158-.363 3.75-1.079 4.73-.688.939-1.849 1.396-3.548 1.396-1.705 0-2.877-.459-3.584-1.401-.734-.979-1.107-2.57-1.107-4.726V86.947c0-.908-.384-1.728-1.145-2.438-.751-.702-1.751-1.057-2.973-1.057-1.258 0-2.296.352-3.085 1.045-.811.71-1.222 1.535-1.222 2.45v15.806c0 1.988.194 3.869.575 5.588.393 1.758 1.077 3.3 2.035 4.586.968 1.299 2.282 2.323 3.906 3.05 1.607.716 3.617 1.079 5.975 1.079 2.457 0 4.515-.455 6.115-1.354 1.342-.754 2.473-1.744 3.371-2.951.866 1.207 1.971 2.197 3.294 2.95 1.58.899 3.669 1.354 6.211 1.354 2.357 0 4.359-.364 5.947-1.081 1.601-.726 2.902-1.751 3.872-3.048.96-1.29 1.645-2.833 2.034-4.586.381-1.719.575-3.6.575-5.588V86.947c0-.911-.398-1.733-1.184-2.445-.767-.697-1.818-1.05-3.12-1.05z"/></svg>
diff --git a/src/Wallabag/CoreBundle/Resources/views/themes/material/layout.html.twig b/src/Wallabag/CoreBundle/Resources/views/themes/material/layout.html.twig
index 6472d1822..f0012ad9f 100644
--- a/src/Wallabag/CoreBundle/Resources/views/themes/material/layout.html.twig
+++ b/src/Wallabag/CoreBundle/Resources/views/themes/material/layout.html.twig
@@ -29,7 +29,7 @@
             {% block logo %}
                 <li class="logo border-bottom">
                     <a title="{{ 'menu.left.back_to_unread'|trans }}" href="{{ path('unread') }}">
-                        <img src="{{ asset('wallassets/themes/_global/img/logo-square.png') }}" alt="wallabag logo" />
+                        <img src="{{ asset('wallassets/themes/_global/img/logo-square.svg') }}" alt="wallabag logo" />
                     </a>
                 </li>
             {% endblock %}
diff --git a/web/wallassets/themes/_global/img/logo-square.png b/web/wallassets/themes/_global/img/logo-square.png
deleted file mode 100644
index d5e059776..000000000
Binary files a/web/wallassets/themes/_global/img/logo-square.png and /dev/null differ
diff --git a/web/wallassets/themes/_global/img/logo-square.svg b/web/wallassets/themes/_global/img/logo-square.svg
new file mode 100644
index 000000000..7b87fedcd
--- /dev/null
+++ b/web/wallassets/themes/_global/img/logo-square.svg
@@ -0,0 +1 @@
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