Add option to highlight numbers (#451)

Author: imustafin

README.md

@@ -106,6 +106,9 @@ elisp code:
 (setq solarized-height-plus-3 1.0)
 (setq solarized-height-plus-4 1.0)
 
+;; Highlight all numbers
+(setq solarized-highlight-numbers t)
+
 ```
 
 Note that these need to be set **before** `load-theme` is invoked for Solarized.

solarized-faces.el

@@ -236,6 +236,7 @@
        ((,class (:foreground ,base01 :slant ,s-maybe-italic))))
      `(font-lock-comment-face ((,class (:foreground ,base01))))
      `(font-lock-constant-face ((,class (:foreground ,blue :weight bold))))
+     `(font-lock-number-face ((,class (:foreground ,(if solarized-highlight-numbers violet 'unspecified)))))
      `(font-lock-doc-face ((,class (:foreground ,(if solarized-distinct-doc-face violet cyan)
                                                 :slant ,s-maybe-italic))))
      `(font-lock-function-name-face ((,class (:foreground ,blue))))
@@ -919,7 +920,7 @@
      `(highlight-indentation-face ((,class (:background ,base02))))
      `(highlight-indentation-current-column-face((,class (:background ,base02))))
 ;;;;; highlight-numbers
-     `(highlight-numbers-number ((,class (:foreground ,violet :bold nil))))
+     `(highlight-numbers-number ((,class (:inherit font-lock-number-face))))
 ;;;;; highlight-symbol
      `(highlight-symbol-face ((,class (:foreground ,magenta))))
 ;;;;; hl-line-mode

solarized.el

@@ -52,6 +52,13 @@ Related discussion: https://github.com/bbatsov/solarized-emacs/issues/158"
   :type 'boolean
   :group 'solarized)
 
+(defcustom solarized-highlight-numbers nil
+  "Highlight all numbers.
+Applies color to `font-lock-number-face' and `highlight-numbers' mode.
+Many tree-sitter based modes use `font-lock-number-face'."
+  :type 'boolean
+  :group 'solarized)
+
 (defcustom solarized-use-variable-pitch t
   "Use variable pitch face for some headings and titles."
   :type 'boolean