diff --git a/10themes.el b/10themes.el
index 9ee2572..544f31d 100644
--- a/10themes.el
+++ b/10themes.el
@@ -8,6 +8,7 @@
 (load "~/.emacs.d/10themes-base16-not-harmonic.el")
 (load-theme 'base16-mexico-light t t)
 (load-theme 'manoj-dark t t)
+(load-theme 'base16-one-light t t)
 
 (defun base16-mexico-light-custom ()
   "Additional configuration for Base16 theme."
@@ -24,8 +25,7 @@
 (if (display-graphic-p)
     (progn
       (sml/apply-theme 'respectful)
-      (enable-theme 'base16-not-harmonic)
-      (base16-harmonic-custom))
+      (enable-theme 'base16-one-light))
   (progn
     (enable-theme 'manoj-dark)))
 
diff --git a/init.el b/init.el
index 701febc..416ff80 100644
--- a/init.el
+++ b/init.el
@@ -67,6 +67,9 @@
                      rust-mode
                      flycheck-rust
 
+                     ;; Crystal
+                     crystal-mode
+
                      ;; Web
                      web-mode
                      company-web
@@ -117,9 +120,12 @@
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
+ '(custom-safe-themes
+   (quote
+    ("c9f102cf31165896631747fd20a0ca0b9c64ecae019ce5c2786713a5b7d6315e" "1f38fb71e55e5ec5f14a39d03ca7d7a416123d3f0847745c7bade053ca58f043" "986e7e8e428decd5df9e8548a3f3b42afc8176ce6171e69658ae083f3c06211c" "cea3ec09c821b7eaf235882e6555c3ffa2fd23de92459751e18f26ad035d2142" "f984e2f9765a69f7394527b44eaa28052ff3664a505f9ec9c60c088ca4e9fc0b" "99c86852decaeb0c6f51ce8bd46e4906a4f28ab4c5b201bdc3fdf85b24f88518" "85e6bb2425cbfeed2f2b367246ad11a62fb0f6d525c157038a0d0eaaabc1bfee" "d9850d120be9d94dd7ae69053630e89af8767c36b131a3aa7b06f14007a24656" "fec45178b55ad0258c5f68f61c9c8fd1a47d73b08fb7a51c15558d42c376083d" "1263771faf6967879c3ab8b577c6c31020222ac6d3bac31f331a74275385a452" default)))
  '(package-selected-packages
    (quote
-    (dap-mode lsp-ui company-lsp lsp-mode nginx-mode gitignore-mode js2-mode keyfreq company-web visual-regexp enh-ruby-mode counsel-projectile counsel ivy flycheck-rust flycheck racer rust-mode hydra markdown-mode solarized-theme company-ansible alchemist window-purpose column-enforce-mode yaml-mode ansible dockerfile-mode ruby-end web-mode rvm dash-at-point robe base16-theme exec-path-from-shell))))
+    (crystal-mode dap-mode lsp-ui company-lsp lsp-mode nginx-mode gitignore-mode js2-mode keyfreq company-web visual-regexp enh-ruby-mode counsel-projectile counsel ivy flycheck-rust flycheck racer rust-mode hydra markdown-mode solarized-theme company-ansible alchemist window-purpose column-enforce-mode yaml-mode ansible dockerfile-mode ruby-end web-mode rvm dash-at-point robe base16-theme exec-path-from-shell))))
 (custom-set-faces
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.