Fix new references

bin/omarchy-theme-set-browser

@@ -3,8 +3,8 @@
 CHROMIUM_THEME=~/.config/omarchy/current/theme/chromium.theme
 
 if omarchy-cmd-present chromium || omarchy-cmd-present brave; then
-  if [[ -f CHROMIUM_THEME ]]; then
-    rgb=$(<CHROMIUM_THEME)
+  if [[ -f $CHROMIUM_THEME ]]; then
+    rgb=$(<$CHROMIUM_THEME)
     THEME_HEX_COLOR=$(printf '#%02x%02x%02x' ${rgb//,/ })
   else
     # Use a default, neutral grey if theme doesn't have a color