optional: warn about functions with high stack usage

platformio.ini

@@ -916,6 +916,7 @@ build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp32.build_flagsV4} ${common_mm.build_flags_S}
   -Wno-misleading-indentation -Wno-format-truncation 
   -Wshadow=compatible-local ;; emit warning in case a local variable "shadows" another local one
+  ;-Wstack-usage=2732       ;; warn if a function needs more that 30% of availeable stack ("stack usage might be unbounded", "stack usage is 2824 bytes")
   -D WLED_ENABLE_DMX_INPUT
 lib_deps = ${esp32.lib_depsV4} ${common_mm.lib_deps_S}
 board_build.partitions = ${esp32.default_partitions}