diff --git a/init.el b/init.el
index 2d503d1..96d354e 100644
--- a/init.el
+++ b/init.el
@@ -94,7 +94,7 @@
  ;; If there is more than one, they won't work right.
  '(font-lock-constant-face ((((type graphic)) (:foreground "#dfaf8f")) (((min-colors 256)) (:foreground "brightred")) (t (:foreground "brightred"))))
  '(font-lock-type-face ((t (:foreground "#ffcb6b" :family "JetBrains Mono"))))
- '(markdown-code-face ((t (:inherit fixed-pitch :family "JetBrains Mono"))))
+ '(markdown-code-face ((t (:inherit fixed-pitch :family "IBM Plex Mono"))))
  '(mmm-default-submode-face ((t nil))))
 
 ;; Restore GC to normal, but still high
diff --git a/lang/elixir.el b/lang/elixir.el
index df2319f..86adc9f 100644
--- a/lang/elixir.el
+++ b/lang/elixir.el
@@ -14,7 +14,7 @@
   "
 ^                                   Elixir actions
 ^^^^^^^^--------------------------------------------------------------------------------------------
-Buffer: _r_: Reload _f_: Format _i_: Indent
+Buffer: _r_: Reload _f_: Format _i_: Indent _e_: Show Errors
 Other:  _m_: iMenu
 ^^
 "
@@ -22,6 +22,7 @@ Other:  _m_: iMenu
   ("r" revert-buffer-no-confirm)
   ("i" mark-and-indent-whole-buffer)
   ("f" elixir-format)
+  ("e" flycheck-list-errors)
   ("m" lsp-ui-imenu))
 
 (defun activate-elixir-mode ()
diff --git a/pkg/fonts.el b/pkg/fonts.el
index a597156..f11cf8a 100644
--- a/pkg/fonts.el
+++ b/pkg/fonts.el
@@ -12,18 +12,41 @@
 
 ;; Set font face
 ;;;;;;;;;;;;;;;;;;;;;; Font configuration ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(defun +custom-set-lsp-ui-font-hook ()
+  "Reset LSP IO font to specified +custom-font and +custom-font-size."
+  (setq lsp-ui-doc-frame-hook nil)
+  (add-hook 'lsp-ui-doc-frame-hook
+            (lambda (frame _w)
+              (set-face-attribute
+               'default frame :font
+               (format "%s %d" +custom-font (- +custom-font-size 2))))))
+
 (defun set-font (name size)
   "Set font to NAME and its SIZE to X pixels."
   (interactive "sNew font: \nnEnter size for %s: ")
+  (defvar +custom-font name)
+  (defvar +custom-font-size size)
+
   (set-face-attribute 'default nil :font (format "%s %d" name size))
-  ;; Set modeline font to be 1 pixel point smaller than the general font
+
+  ;; Set comletion and modeline font to be 1 pixel point smaller than
+  ;; the general font
+  ;; (set-face-attribute 'markdown-code-face nil :font (format "%s %d" name (- size 1)))
+  (set-face-attribute 'tooltip nil :font (format "%s %d" name (- size 1)))
+  (set-face-attribute 'company-tooltip nil :font (format "%s %d" name (- size 1)))
+  (set-face-attribute 'company-tooltip-annotation nil :font (format "%s %d" name (- size 1)))
+  (set-face-attribute 'company-tooltip-mouse nil :font (format "%s %d" name (- size 1)))
   (set-face-attribute 'mode-line nil :font (format "%s %d" name (- size 1)))
-  (set-face-attribute 'mode-line-inactive nil :font
-                      (format "%s %d" name (- size 1))))
+  (set-face-attribute 'mode-line-inactive nil :font (format "%s %d" name (- size 1)))
+
+  ;; Call LSP-UI hook
+  (+custom-set-lsp-ui-font-hook))
 
 ;; (defconst +custom-font "Iosevka Term")
 ;; (defconst +custom-font "JetBrains Mono")
-(defconst +custom-font "IBM Plex Mono")
+(defvar +custom-font "IBM Plex Mono")
+(defvar +custom-font-size 14)
+
 
 (defun set-font-to-screen ()
   "Automatically set font size to suit the monitor."
diff --git a/pkg/themes.el b/pkg/themes.el
index c0c1653..92efec4 100644
--- a/pkg/themes.el
+++ b/pkg/themes.el
@@ -14,17 +14,21 @@
 (use-package flatui-theme :straight t :defer t)
 (use-package planet-theme :straight t :defer t)
 (use-package apropospriate-theme :straight t :defer t)
+(use-package material-theme :straight t :defer t)
 
 ;; Disable cursor blinking
 (blink-cursor-mode 0)
 
 ;; Light themes
+(load-theme 'material-light t)
+(load-theme 'base16-zenburn t)
 (load-theme 'base16-atelier-forest-light t t)
 (load-theme 'base16-harmonic-light t t)
 (load-theme 'apropospriate-light t t)
 (load-theme 'base16-humanoid-light t t)
 
 ;; Dark themes
+(load-theme 'material t)
 (load-theme 'base16-solarflare t t)
 (load-theme 'base16-snazzy t t)
 (load-theme 'base16-gruvbox-dark-hard t t)
@@ -32,9 +36,7 @@
 (if (display-graphic-p)
     (progn
       (sml/apply-theme 'respectful)
-      (enable-theme (nth
-                     (random 2)
-                     '(base16-humanoid-light base16-harmonic-light))))
+      (enable-theme 'base16-harmonic-light))
   (progn
     (defvar base16-theme-256-color-source "base16-shell")
     (enable-theme 'apropospriate-light)))