yascroll: disable in org mode, relegate theming to the theme

lisp/mitch-packages.el

@@ -504,9 +504,9 @@ targets."
   :defer 1
   ;; :if (not (display-graphic-p))
   :custom (yascroll:delay-to-hide nil)
-  :custom-face
-  (yascroll:thumb-fringe
-   ((t (:background "green3"))))
+  ;; :custom-face
+  ;; (yascroll:thumb-fringe
+  ;;  ((t (:background "green3"))))
   :config
   (defun yascroll:make-thumb-overlay-fringe (left-or-right)
     "Make thumb overlay on the LEFT-OR-RIGHT fringe."
@@ -524,6 +524,7 @@ targets."
       (overlay-put overlay 'window (selected-window))
       (overlay-put overlay 'priority yascroll:priority)
       overlay))
+  (add-to-list 'yascroll:disabled-modes 'org-mode)
   (global-yascroll-bar-mode 1))
 
 ;; parentheses settingses