diff --git a/lua/paper-tonic-modern/colors.lua b/lua/paper-tonic-modern/colors.lua
index e0196ed..7096388 100644
--- a/lua/paper-tonic-modern/colors.lua
+++ b/lua/paper-tonic-modern/colors.lua
@@ -18,9 +18,9 @@ local is_dark = vim.o.background == 'dark'
 
 if is_dark then
   -- Dark mode: soft dark backgrounds
-  M.bg = {'#1a1a1a', 234, 'black'}
+  M.bg = {'#27292c', 234, 'black'}
   M.bg_darkest = {'#ffffff', 255, 'white'}  -- Inverted: lightest for strong contrast
-  M.bg_ui = {'#2a2a2a', 236, 'darkgray'}
+  M.bg_ui = {'#353535', 236, 'darkgray'}
 else
   -- Light mode: pure white paper
   M.bg = {'#ffffff', 255, 'white'}
diff --git a/spell/en.utf-8.add b/spell/en.utf-8.add
index 25c8b29..bcf6093 100644
--- a/spell/en.utf-8.add
+++ b/spell/en.utf-8.add
@@ -809,3 +809,7 @@ shebang
 GI
 Wyvern
 journalwp
+Jax
+APA
+RIS
+mathjax
diff --git a/spell/en.utf-8.add.spl b/spell/en.utf-8.add.spl
index a42a0ec..83c1cda 100644
Binary files a/spell/en.utf-8.add.spl and b/spell/en.utf-8.add.spl differ