Use highlight-function-calls, with a face similar to link

config/ublt-dark-theme.el

@@ -576,14 +576,17 @@ scaled. This \"base face\" trick is used by `ublt-dark-theme.el'."
      ((,class (,@fw ,@constant))))
    `(highlight-numbers-number
      ((,class (,@fw ,@number))))
+   `(hl-todo
+     ((,class (:inherit font-lock-warning-face))))
+
    `(lisp-extra-font-lock-quoted
      ((,class (,@fw))))
    `(lisp-extra-font-lock-quoted-function
      ((,class (,@fw :inherit link))))
    `(lisp-extra-font-lock-backquote
      ((,class (:inherit font-lock-preprocessor-face))))
-   `(hl-todo
-     ((,class (:inherit font-lock-warning-face))))
+   `(highlight-function-calls-face
+     ((,class (,@fw :inherit link :underline nil))))
 
    `(js2-function-param
      ((,class (,@param))))

config/ublt-lisp.el

@@ -46,6 +46,9 @@
 (use-package lisp-extra-font-lock
   :config (lisp-extra-font-lock-global-mode +1))
 
+(use-package highlight-function-calls
+  :hook (emacs-lisp-mode . highlight-function-calls-mode))
+
 (use-package ielm
   :hook (ielm-mode . (lambda () (setq comint-input-ring-file-name "~/.emacs.d/.ielm-input.hist"))))
 

init.el

@@ -95,10 +95,8 @@
 
 
 
-;;; Modern Emacs Lisp.
-(use-package dash
-  ;; FIX: We cannot use :custom because `dash--enable-fontlock' is not autoloaded.
-  :config (custom-set-variables '(dash-enable-fontlock t)))
+;;; Convenient list functions.
+(use-package dash)
 
 (require 'ublt-util)
 

straight/versions/default.el

@@ -66,6 +66,7 @@
  ("helm-rg" . "785a80fe5cc87e27c5ea3d00a70049028d9e2847")
  ("helm-swoop" . "884d2f5840108f0171d38fa19ae2334560f5c2d9")
  ("helpful" . "53ae44bd2384de5e2513496ccf6ca2fce6767299")
+ ("highlight-function-calls" . "f7a1eaf95fc64cc0db4d0567f9ff79ec4ae04787")
  ("highlight-numbers" . "8b4744c7f46c72b1d3d599d4fb75ef8183dee307")
  ("highlight-parentheses.el" . "f0bd58c8dadd2db703b7bfd09e911b5fda05b3df")
  ("highlight-symbol.el" . "7a789c779648c55b16e43278e51be5898c121b3a")