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diff --git a/assets/core/knott-white.png b/assets/core/knott-white.png
index 93a84f6e..d30bc363 100644
Binary files a/assets/core/knott-white.png and b/assets/core/knott-white.png differ
diff --git a/cwtch.png b/cwtch.png
index 93a84f6e..d30bc363 100644
Binary files a/cwtch.png and b/cwtch.png differ
diff --git a/linux/cwtch.png b/linux/cwtch.png
index 93a84f6e..d30bc363 100644
Binary files a/linux/cwtch.png and b/linux/cwtch.png differ
diff --git a/update-icons.sh b/update-icons.sh
new file mode 100755
index 00000000..c7131117
--- /dev/null
+++ b/update-icons.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+orig=assets/core/knott-white.svg
+
+# app icon used in profile manager bar
+inkscape -w 512 -h 512 -e assets/core/knott-white.png $orig
+
+# linux deploy icon
+inkscape -w 512 -h 512 -e linux/cwtch.png $orig
+inkscape -w 512 -h 512 -e cwtch.png $orig
+
+# windows icons
+inkscape -w 256 -h 256 -e windows/runner/resources/knot_256.png $orig
+convert windows/runner/resources/knot_256.png windows/runner/resources/knot_256.ico
+inkscape -w 128 -h 128 -e windows/runner/resources/knot_128.png $orig
+convert windows/runner/resources/knot_128.png windows/runner/resources/knot_128.ico
+inkscape -w 64 -h 64 -e windows/runner/resources/knot_64.png $orig
+convert windows/runner/resources/knot_64.png windows/runner/resources/knot_64.ico
+inkscape -w 48 -h 48 -e windows/runner/resources/knot_48.png $orig
+convert windows/runner/resources/knot_48.png windows/runner/resources/knot_48.ico
+inkscape -w 32 -h 32 -e windows/runner/resources/knot_32.png $orig
+convert windows/runner/resources/knot_32.png windows/runner/resources/knot_32.ico
+inkscape -w 16 -h 16 -e windows/runner/resources/knot_16.png $orig
+convert windows/runner/resources/knot_16.png windows/runner/resources/knot_16.ico
+
+# android icons
+inkscape -w 48 -h 48 -e android/app/src/main/res/mipmap-mdpi/knott.png $orig
+inkscape -w 72 -h 72 -e android/app/src/main/res/mipmap-hdpi/knott.png $orig
+inkscape -w 96 -h 96 -e android/app/src/main/res/mipmap-xhdpi/knott.png $orig
+inkscape -w 144 -h 144 -e android/app/src/main/res/mipmap-xxhdpi/knott.png $orig
+inkscape -w 192 -h 192 -e android/app/src/main/res/mipmap-xxxhdpi/knott.png $orig
diff --git a/windows/runner/resources/knot_128.ico b/windows/runner/resources/knot_128.ico
index d54f3b09..83c4a834 100644
Binary files a/windows/runner/resources/knot_128.ico and b/windows/runner/resources/knot_128.ico differ
diff --git a/windows/runner/resources/knot_16.ico b/windows/runner/resources/knot_16.ico
index 82de681c..1d6d926a 100644
Binary files a/windows/runner/resources/knot_16.ico and b/windows/runner/resources/knot_16.ico differ
diff --git a/windows/runner/resources/knot_256.ico b/windows/runner/resources/knot_256.ico
index 211bf9f0..d7afa681 100644
Binary files a/windows/runner/resources/knot_256.ico and b/windows/runner/resources/knot_256.ico differ
diff --git a/windows/runner/resources/knot_32.ico b/windows/runner/resources/knot_32.ico
index c9d7b1c4..0562ca6f 100644
Binary files a/windows/runner/resources/knot_32.ico and b/windows/runner/resources/knot_32.ico differ
diff --git a/windows/runner/resources/knot_48.ico b/windows/runner/resources/knot_48.ico
index badd923f..a8bbba08 100644
Binary files a/windows/runner/resources/knot_48.ico and b/windows/runner/resources/knot_48.ico differ
diff --git a/windows/runner/resources/knot_64.ico b/windows/runner/resources/knot_64.ico
index a55c52aa..ddd965d4 100644
Binary files a/windows/runner/resources/knot_64.ico and b/windows/runner/resources/knot_64.ico differ