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diff --git a/quad/qtest/test-fallback-mini-tester.pdf b/quad/qtest/test-fallback-mini-tester.pdf
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diff --git a/quad/qtest/test-fallback-super-tester.pdf b/quad/qtest/test-fallback-super-tester.pdf
index 8e304d4c..b0c79d7a 100644
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diff --git a/quad/qtest/test-hello-tester.pdf b/quad/qtest/test-hello-tester.pdf
index 3a101a7c..8dd9b641 100644
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diff --git a/quad/qtest/test-kafka-tester.pdf b/quad/qtest/test-kafka-tester.pdf
index 3e2a8634..dcf6d3ab 100644
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diff --git a/quad/qtest/test-symbol-tester.pdf b/quad/qtest/test-symbol-tester.pdf
index 07141559..b509f3e6 100644
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diff --git a/quad/quad/scribblings/quad.scrbl b/quad/quad/scribblings/quad.scrbl
index 00cf9d59..c84f6f73 100644
--- a/quad/quad/scribblings/quad.scrbl
+++ b/quad/quad/scribblings/quad.scrbl
@@ -620,6 +620,46 @@ Though this system may seem like a lot of housekeeping, it's nice for two reason
 
 TK: example of font setup
 
+@subsubsection{Default font families}
+
+Quadwriter typesets documents by looking up families with the names below. You can override the default selections by providing a family in the @racket[fonts] folder of your project that has the same name.
+
+@defthing[#:kind "font directory" text path-string?]{
+Used for all body text. Default is a serif font.
+}
+
+@defthing[#:kind "font directory" heading path-string?]{
+Used for headings. Default is a sans serif font..
+}
+
+@defthing[#:kind "font directory" code path-string?]{
+Used for code. Default is a monospaced font.
+}
+
+@defthing[#:kind "font directory" blockquote path-string?]{
+Used for blockquote boxes. Defaults is a sans serif font.
+}
+
+
+@defthing[#:kind "font directory" default path-string?]{
+Used for any miscellaneous elements. Default is same as @racket[text].
+}
+
+
+@defthing[#:kind "font directory" fallback-emoji path-string?]{
+Fallback only. Used for emoji not present in the currently selected font.
+}
+
+@defthing[#:kind "font directory" fallback-math path-string?]{
+Fallback only. Used for math symbols not present in the currently selected font.
+}
+
+@defthing[#:kind "font directory" fallback path-string?]{
+Fallback only. Used for other glyphs not present in the currently selected font.
+}
+
+
+
 @subsection{Utility}
 
 @defproc[
diff --git a/quad/quadwriter/fonts/emoji/LICENSE_OFL.txt b/quad/quadwriter/fonts/fallback-emoji/LICENSE_OFL.txt
similarity index 100%
rename from quad/quadwriter/fonts/emoji/LICENSE_OFL.txt
rename to quad/quadwriter/fonts/fallback-emoji/LICENSE_OFL.txt
diff --git a/quad/quadwriter/fonts/emoji/NotoEmoji-Regular.ttf b/quad/quadwriter/fonts/fallback-emoji/NotoEmoji-Regular.ttf
similarity index 100%
rename from quad/quadwriter/fonts/emoji/NotoEmoji-Regular.ttf
rename to quad/quadwriter/fonts/fallback-emoji/NotoEmoji-Regular.ttf
diff --git a/quad/quadwriter/fonts/emoji/README b/quad/quadwriter/fonts/fallback-emoji/README
similarity index 100%
rename from quad/quadwriter/fonts/emoji/README
rename to quad/quadwriter/fonts/fallback-emoji/README
diff --git a/quad/quadwriter/fonts/math/LICENSE_OFL.txt b/quad/quadwriter/fonts/fallback-math/LICENSE_OFL.txt
similarity index 100%
rename from quad/quadwriter/fonts/math/LICENSE_OFL.txt
rename to quad/quadwriter/fonts/fallback-math/LICENSE_OFL.txt
diff --git a/quad/quadwriter/fonts/math/NotoSansMath-Regular.ttf b/quad/quadwriter/fonts/fallback-math/NotoSansMath-Regular.ttf
similarity index 100%
rename from quad/quadwriter/fonts/math/NotoSansMath-Regular.ttf
rename to quad/quadwriter/fonts/fallback-math/NotoSansMath-Regular.ttf
diff --git a/quad/quadwriter/render.rkt b/quad/quadwriter/render.rkt
index 3465b90b..63d8f74b 100644
--- a/quad/quadwriter/render.rkt
+++ b/quad/quadwriter/render.rkt
@@ -88,8 +88,8 @@
                                #:attrs-proc handle-cascading-attrs
                                #:missing-glyph-action 'fallback
                                #:fallback "fallback"
-                               #:emoji "emoji"
-                               #:math "math"
+                               #:emoji "fallback-emoji"
+                               #:math "fallback-math"
                                #:font-path-resolver resolve-font-path))]
   [define hyphenated-qs (time-log hyphenate (handle-hyphenate atomized-qs))]
   [define stringified-qs (map ->string-quad hyphenated-qs)]