diff --git a/frontend/src/app/render_wasm/api.cljs b/frontend/src/app/render_wasm/api.cljs
index 44321c28e..89e96f323 100644
--- a/frontend/src/app/render_wasm/api.cljs
+++ b/frontend/src/app/render_wasm/api.cljs
@@ -51,16 +51,6 @@
 (def GRID-LAYOUT-COLUMN-ENTRY-SIZE 5)
 (def GRID-LAYOUT-CELL-ENTRY-SIZE 37)
 
-;; FIXME: use `gradient-byte-size` instead
-(defn gradient-stop-get-entries-size
-  [stops]
-  (mem/get-list-size stops sr-fills/GRADIENT-STOP-SIZE))
-
-(defn gradient-byte-size
-  [gradient]
-  (let [stops (:stops gradient)]
-    (+ sr-fills/GRADIENT-BASE-SIZE (* (count stops) sr-fills/GRADIENT-STOP-SIZE))))
-
 (defn modifier-get-entries-size
   "Returns the list of a modifier list in bytes"
   [modifiers]
@@ -234,7 +224,7 @@
                 (h/call wasm/internal-module "_add_shape_solid_fill" rgba))
 
               (some? gradient)
-              (let [size   (gradient-byte-size gradient)
+              (let [size   (sr-fills/gradient-byte-size gradient)
                     offset (mem/alloc-bytes size)
                     heap   (mem/get-heap-u32)]
                 (sr-fills/serialize-gradient-fill gradient opacity heap offset)
@@ -280,7 +270,7 @@
 
             (cond
               (some? gradient)
-              (let [size   (gradient-byte-size gradient)
+              (let [size   (sr-fills/gradient-byte-size gradient)
                     offset (mem/alloc-bytes size)
                     heap   (mem/get-heap-u32)]
                 (sr-fills/serialize-gradient-fill gradient opacity heap offset)
diff --git a/frontend/src/app/render_wasm/serializers/color.cljs b/frontend/src/app/render_wasm/serializers/color.cljs
index af7fe36f4..35fda2b75 100644
--- a/frontend/src/app/render_wasm/serializers/color.cljs
+++ b/frontend/src/app/render_wasm/serializers/color.cljs
@@ -8,15 +8,4 @@
   (let [rgb (js/parseInt (subs hex 1) 16)
         a (mth/floor (* (or opacity 1) 0xff))]
         ;; rgba >>> 0 so we have an unsigned representation
-    (unsigned-bit-shift-right (bit-or (bit-shift-left a 24) rgb) 0)))
-
-(defn rgba-bytes-from-hex
-  "Takes a hex color in #rrggbb format, and an opacity value from 0 to 1 and returns an array with its r g b a values"
-  [hex opacity]
-  (let [rgb (js/parseInt (subs hex 1) 16)
-        a (mth/floor (* (or opacity 1) 0xff))
-        ;; rgba >>> 0 so we have an unsigned representation
-        r (bit-shift-right rgb 16)
-        g (bit-and (bit-shift-right rgb 8) 255)
-        b (bit-and rgb 255)]
-    [r g b a]))
\ No newline at end of file
+    (unsigned-bit-shift-right (bit-or (bit-shift-left a 24) rgb) 0)))
\ No newline at end of file
diff --git a/frontend/src/app/render_wasm/serializers/fills.cljs b/frontend/src/app/render_wasm/serializers/fills.cljs
index cbcbb5b59..aae77bc58 100644
--- a/frontend/src/app/render_wasm/serializers/fills.cljs
+++ b/frontend/src/app/render_wasm/serializers/fills.cljs
@@ -6,6 +6,11 @@
 (def GRADIENT-STOP-SIZE 8)
 (def GRADIENT-BASE-SIZE 24)
 
+(defn gradient-byte-size
+  [gradient]
+  (let [stops (:stops gradient)]
+    (+ GRADIENT-BASE-SIZE (* (count stops) GRADIENT-STOP-SIZE))))
+
 (defn serialize-gradient-fill
   [gradient opacity heap offset]
   (let [dview (js/DataView. (.-buffer heap))