diff --git a/_includes/map.html b/_includes/map.html
index 1858f9ec..e842f25e 100644
--- a/_includes/map.html
+++ b/_includes/map.html
@@ -7,5 +7,5 @@
     marginwidth="0"
     title="mapa wskazująca adres Hakierspejsu - ulica Zielona 30 w Łodzi"
     src="https://www.openstreetmap.org/export/embed.html?bbox=19.44251507520676%2C51.768455699876846%2C19.44776147603989%2C51.7705653336433&amp;layer=mapnik&amp;marker=51.76927%2C19.44527"
-    style="border: 1px solid black; max-width: 100%">
+    style="border: 1px solid white; max-width: 100%; filter: invert(1) hue-rotate(220deg);"
 </iframe>
diff --git a/assets/images/kiosk_qr.png b/assets/images/kiosk_qr.png
deleted file mode 100644
index 178c8464..00000000
Binary files a/assets/images/kiosk_qr.png and /dev/null differ
diff --git a/assets/images/kiosk_qr.webp b/assets/images/kiosk_qr.webp
new file mode 100644
index 00000000..0d047dd8
Binary files /dev/null and b/assets/images/kiosk_qr.webp differ
diff --git a/assets/images/space-1.png b/assets/images/space-1.png
deleted file mode 100644
index 712cde23..00000000
Binary files a/assets/images/space-1.png and /dev/null differ
diff --git a/assets/images/space-1.webp b/assets/images/space-1.webp
new file mode 100644
index 00000000..c2eff1c2
Binary files /dev/null and b/assets/images/space-1.webp differ
diff --git a/assets/images/space-2.png b/assets/images/space-2.png
deleted file mode 100644
index 825e6256..00000000
Binary files a/assets/images/space-2.png and /dev/null differ
diff --git a/assets/images/space-2.webp b/assets/images/space-2.webp
new file mode 100644
index 00000000..25ff298c
Binary files /dev/null and b/assets/images/space-2.webp differ
diff --git a/assets/images/space-3.png b/assets/images/space-3.png
deleted file mode 100644
index 362d6089..00000000
Binary files a/assets/images/space-3.png and /dev/null differ
diff --git a/assets/images/space-3.webp b/assets/images/space-3.webp
new file mode 100644
index 00000000..52c893f8
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diff --git a/index.html b/index.html
index 6359daab..e6f166fb 100644
--- a/index.html
+++ b/index.html
@@ -184,9 +184,9 @@ <h3>Galeria</h3>
       <img src="https://hssi.hs-ldz.pl/640x,q95/http://server/siedziba/e649dfc67c3f7264a4da.jpg" alt="Zdjecie spejsu " loading="lazy">
       <img src="https://hssi.hs-ldz.pl/640x,q95/http://server/siedziba/e6e07edd4595136401f9.jpg" alt="Zdjecie spejsu " loading="lazy">
       <img src="https://hssi.hs-ldz.pl/640x,q95/http://server/siedziba/fab1c4f63af412492fa7.jpg" alt="Zdjecie spejsu " loading="lazy">
-      <img src="{{ "/assets/images/space-1.png" | relative_url }}" alt="Zdjecie spejsu numer 1" loading="lazy">
-      <img src="{{ "/assets/images/space-2.png" | relative_url }}" alt="Zdjecie spejsu numer 2" loading="lazy">
-      <img src="{{ "/assets/images/space-3.png" | relative_url }}" alt="Zdjecie spejsu numer 3" loading="lazy">
+      <img src="{{ "/assets/images/space-1.webp" | relative_url }}" alt="Zdjecie spejsu numer 1" loading="lazy">
+      <img src="{{ "/assets/images/space-2.webp" | relative_url }}" alt="Zdjecie spejsu numer 2" loading="lazy">
+      <img src="{{ "/assets/images/space-3.webp" | relative_url }}" alt="Zdjecie spejsu numer 3" loading="lazy">
       <img src="https://hssi.hs-ldz.pl/640x,q95/http://server/espresso-timer/DSC_0664.JPG" alt="Zdjecie spejsu numer 4" loading="lazy">
     </div>
   </section>
diff --git a/kiosk_mode.html b/kiosk_mode.html
index d2399879..2f7466df 100644
--- a/kiosk_mode.html
+++ b/kiosk_mode.html
@@ -20,7 +20,7 @@
 </style>
 </head>
 <body>
-    <img class="qr" src="assets/images/kiosk_qr.png">
+    <img class="qr" src="assets/images/kiosk_qr.webp">
     <p>
       <strong>Organizujemy otwarte spotkania</strong> co drugi wtorek. Następne: <span id="kiosk-date"></span>.
     </p>
