diff --git a/assets/M-png/boiler.png b/assets/M-png/boiler.png
index 6e5975f..228393c 100644
Binary files a/assets/M-png/boiler.png and b/assets/M-png/boiler.png differ
diff --git a/assets/M/boiler.svg b/assets/M/boiler.svg
index e2be9f4..a7bc8a2 100644
--- a/assets/M/boiler.svg
+++ b/assets/M/boiler.svg
@@ -1,6 +1,8 @@
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