Doc: mention IMGUI_USE_WCHAR32 in fonts documentation (#3562)
diff --git a/docs/FONTS.md b/docs/FONTS.md
index 87e6ee0..9657340 100644
--- a/docs/FONTS.md
+++ b/docs/FONTS.md
@@ -157,6 +157,7 @@
3. Set `io.Fonts.TexDesiredWidth` to specify a texture width to minimize texture height (see comment in `ImFontAtlas::Build()` function).
4. Set `io.Fonts.Flags |= ImFontAtlasFlags_NoPowerOfTwoHeight;` to disable rounding the texture height to the next power of two.
5. Read about oversampling [here](https://github.com/nothings/stb/blob/master/tests/oversample).
+6. To support the extended range of unicode beyond 0xFFFF (e.g. emoticons, dingbats, symbols, shapes, ancient languages, etc...) add `#define IMGUI_USE_WCHAR32`in your `imconfig.h`
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diff --git a/imconfig.h b/imconfig.h
index 280d143..015540f 100644
--- a/imconfig.h
+++ b/imconfig.h
@@ -49,7 +49,7 @@
//---- Pack colors to BGRA8 instead of RGBA8 (to avoid converting from one to another)
//#define IMGUI_USE_BGRA_PACKED_COLOR
-//---- Use 32-bit for ImWchar (default is 16-bit) to support full unicode code points.
+//---- Use 32-bit for ImWchar (default is 16-bit) to support unicode planes 1-16. (e.g. point beyond 0xFFFF like emoticons, dingbats, symbols, shapes, ancient languages, etc...)
//#define IMGUI_USE_WCHAR32
//---- Avoid multiple STB libraries implementations, or redefine path/filenames to prioritize another version
