Upgrade Flanger plugin PNG assets to SVG (#7775)

plugins/Flanger/CMakeLists.txt

@@ -3,5 +3,5 @@ INCLUDE(BuildPlugin)
 BUILD_PLUGIN(
 	flanger FlangerEffect.cpp FlangerControls.cpp FlangerControlsDialog.cpp MonoDelay.cpp
 	MOCFILES FlangerControls.h FlangerControlsDialog.h
-	EMBEDDED_RESOURCES artwork.png logo.png
+	EMBEDDED_RESOURCES artwork.svg logo.svg
 )

plugins/Flanger/artwork.svg

@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" width="195" height="75">
+  <defs>
+    <linearGradient id="a">
+      <stop offset="0" stop-color="#08090c"/>
+      <stop offset="1" stop-color="#101116"/>
+    </linearGradient>
+    <linearGradient xlink:href="#a" id="b" x1="0" x2="0" y1="75" y2="0" gradientUnits="userSpaceOnUse"/>
+  </defs>
+  <path fill="url(#b)" d="M0 0h195v75H0z"/>
+</svg>

plugins/Flanger/logo.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" width="48" height="48">
+  <path fill="#fff" d="M7.86719 2C3.95608 2 2 3.95608 2 7.86719V40.1328C2 44.04392 3.95608 46 7.86719 46H40.1328C44.04392 46 46 44.04392 46 40.13281V7.8672C46 3.95608 44.04392 2 40.13281 2H7.8672zM24 9l15 8.4375V35.25l-5.625 2.8125L27.75 35.25v-6.5625l5.625-2.8125V20.25L24 15.5625 14.625 20.25v5.625l5.625 2.8125V35.25l-5.625 2.8125L9 35.25V17.4375L24 9z"/>
+</svg>