diff --git a/.gitignore b/.gitignore
index 27eff40..f09519d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,4 @@
 /content/images/ifs/all/*
 !/content/images/ifs/all/_index*
 
-/static/media/img/ifs
+/static/processed_images
\ No newline at end of file
diff --git a/config.toml b/config.toml
index 8f5e4e7..5589179 100644
--- a/config.toml
+++ b/config.toml
@@ -47,12 +47,7 @@ not_found = "Inhalt nicht gefunden"
 locale_name = "de_DE"
 publish_time = "veröffentlicht am %date% um %time% Uhr von %author%"
 all = "Alle"
-status_finished = "Abgeschlossen"
-status_active = "In Betrieb"
-status_in_progress = "In Arbeit"
-status_obsolete = "Ersetzt"
-status_disabled = "Außer Betrieb"
-status_broken = "Kaputt"
+images = "Bilder"
 
 [extra]
 ifs_base_path = "https://www.mainframe.io/media/ifs-images"
@@ -81,7 +76,8 @@ not_found_content = "This is not the content you are looking for!"
 not_found = "Content not found"
 locale_name = "en_US"
 publish_time = "published on %date% at %time% by %author%"
-all="All"
+all = "All"
+images = "Images"
 
 status_finished = "Finished"
 status_in_progress = "In Progress"
diff --git a/static/media/blog/2012/lauflicht/img1.jpg b/static/media/blog/2012/lauflicht/img1.jpg
index 5b8290c..7a2647d 100644
Binary files a/static/media/blog/2012/lauflicht/img1.jpg and b/static/media/blog/2012/lauflicht/img1.jpg differ
diff --git a/static/media/blog/2013/30C3/thumbnail.jpg b/static/media/blog/2013/30C3/thumbnail.jpg
index c1e008c..4421e68 100644
Binary files a/static/media/blog/2013/30C3/thumbnail.jpg and b/static/media/blog/2013/30C3/thumbnail.jpg differ
diff --git a/templates/ifs/ifs-single.html b/templates/ifs/ifs-single.html
index 82fee65..befe65b 100644
--- a/templates/ifs/ifs-single.html
+++ b/templates/ifs/ifs-single.html
@@ -23,7 +23,9 @@ <h4 class="d-flex justify-content-between">
 
     {% if page.lower %}
     <a class="btn btn-sm my-auto btn-secondary h-100" href="{{ page.lower.path }}">
-        <<
+        <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-bar-left" viewBox="0 0 16 16">
+            <path fill-rule="evenodd" d="M12.5 15a.5.5 0 0 1-.5-.5v-13a.5.5 0 0 1 1 0v13a.5.5 0 0 1-.5.5M10 8a.5.5 0 0 1-.5.5H3.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L3.707 7.5H9.5a.5.5 0 0 1 .5.5"/>
+        </svg>
     </a>
     {% endif %}
 
@@ -40,7 +42,9 @@ <h4 class="d-flex justify-content-between">
 
     {% if page.higher %}
     <a class="btn btn-sm my-auto btn-secondary h-100" href="{{ page.higher.path }}">
-        >>
+        <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-bar-right" viewBox="0 0 16 16">
+            <path fill-rule="evenodd" d="M6 8a.5.5 0 0 0 .5.5h5.793l-2.147 2.146a.5.5 0 0 0 .708.708l3-3a.5.5 0 0 0 0-.708l-3-3a.5.5 0 0 0-.708.708L12.293 7.5H6.5A.5.5 0 0 0 6 8m-2.5 7a.5.5 0 0 1-.5-.5v-13a.5.5 0 0 1 1 0v13a.5.5 0 0 1-.5.5"/>
+        </svg>
     </a>
     {% endif %}
 
diff --git a/templates/macros.html b/templates/macros.html
index 0c995e3..07f017d 100644
--- a/templates/macros.html
+++ b/templates/macros.html
@@ -106,14 +106,16 @@
         {% set page_description = blog_page.description | default(value="") %}
 
         {% if blog_page.extra.thumbnail %}
-
-        {% set thumbnail_url = config.extra.resource_base ~ blog_page.extra.thumbnail %}
-        {% set thumbnail_metadata = get_image_metadata(path=blog_page.extra.thumbnail) %}
-
+        {% set thumbnail_path = blog_page.extra.thumbnail %}
+        {% set thumbnail_url = config.extra.resource_base ~ thumbnail_path %}
         {% else %}
-        {% set thumbnail_url = "/media/img/logo-ktt.png" %}
-        {% set thumbnail_metadata = get_image_metadata(path=thumbnail_url) %}
+        {% set thumbnail_path = "/media/img/logo-ktt.png" %}
+        {% set thumbnail_url = thumbnail_path %}
+        {% endif %}
 
+        {% if thumbnail_url is not ending_with(".svg") %}
+        {% set resized_image = resize_image(path=thumbnail_path, format="auto", op="fit_height", width=150, height=150) %}
+        {% set thumbnail_url = resized_image.url %}
         {% endif %}
 
         {{