Prefer the emerald decorator if available
diff -ru compiz-core-v0.8.18/plugins/compiz-decorator compiz-core-v0.8.18.new/plugins/compiz-decorator
--- compiz-core-v0.8.18/plugins/compiz-decorator	2020-04-04 20:24:41.000000000 +0200
+++ compiz-core-v0.8.18.new/plugins/compiz-decorator	2024-02-19 20:03:47.413665565 +0100
@@ -48,7 +48,7 @@
 
 # Find a decorator.
 if [ -z "$DECORATOR" ] || [ ! -x "$(which "$DECORATOR" 2> /dev/null)" ]; then
-    for DECORATOR in gtk-window-decorator emerald; do
+    for DECORATOR in emerald gtk-window-decorator; do
         if [ -x "$(which "$DECORATOR" 2> /dev/null)" ]; then
             verbose "Found $DECORATOR decorator.\n"
             break