bug#62562: 30.0.50; [PATCH] Some new SVG icons

[Juri Linkov]

>> Also CC’ing Juri, since I think maybe tab-bar can take advantage of some
>> of these icons :-)
>
> After adapting new icons to tab-bar they look nice.
> I invite everyone to try out this patch to see
> how good they look:

Actually, now buttons are too saturated and attract too much attention,
so here is a better appearance where they are dimmed by the shadow face,
and corresponding code changes that allow this:

diff --git a/lisp/tab-bar.el b/lisp/tab-bar.el
index 7c3069ca269..c42917d51a0 100644
--- a/lisp/tab-bar.el
+++ b/lisp/tab-bar.el
@@ -162,7 +162,8 @@ tab-bar--load-buttons
   (declare-function icons--register "icons")
   (unless (iconp 'tab-bar-new)
     (define-icon tab-bar-new nil
-      `((image "tabs/new.xpm"
+      `((image "symbols/plus_16.svg" "tabs/new.xpm"
+               :face shadow
                :margin ,tab-bar-button-margin
                :ascent center)
         ;; (emoji "➕")
@@ -175,7 +176,8 @@ tab-bar--load-buttons
 
   (unless (iconp 'tab-bar-close)
     (define-icon tab-bar-close nil
-      `((image "tabs/close.xpm"
+      `((image "symbols/cross_16.svg" "tabs/close.xpm"
+               :face shadow
                :margin ,tab-bar-button-margin
                :ascent center)
         ;; (emoji " ❌")
@@ -189,7 +191,10 @@ tab-bar--load-buttons
 
   (unless (iconp 'tab-bar-menu-bar)
     (define-icon tab-bar-menu-bar nil
-      '(;; (emoji "🍔")
+      `((image "symbols/menu_16.svg"
+               :margin ,tab-bar-button-margin
+               :ascent center)
+        ;; (emoji "🍔")
         (symbol "☰")
         (text "Menu" :face tab-bar-tab-inactive))
       "Icon for the menu bar."
@@ -717,16 +722,17 @@ tab-bar-tab-name-format-function
   :version "28.1")
 
 (defun tab-bar-tab-name-format-default (tab i)
-  (let ((current-p (eq (car tab) 'current-tab)))
-    (propertize
-     (concat (if tab-bar-tab-hints (format "%d " i) "")
-             (alist-get 'name tab)
-             (or (and tab-bar-close-button-show
-                      (not (eq tab-bar-close-button-show
-                               (if current-p 'non-selected 'selected)))
-                      tab-bar-close-button)
-                 ""))
-     'face (funcall tab-bar-tab-face-function tab))))
+  (let* ((current-p (eq (car tab) 'current-tab))
+         (name (concat (if tab-bar-tab-hints (format "%d " i) "")
+                       (alist-get 'name tab)
+                       (or (and tab-bar-close-button-show
+                                (not (eq tab-bar-close-button-show
+                                         (if current-p 'non-selected 
'selected)))
+                                tab-bar-close-button)
+                           ""))))
+    (add-face-text-property
+     0 (length name) (funcall tab-bar-tab-face-function tab) t name)
+    name))
 
 (defcustom tab-bar-format '(tab-bar-format-history
                             tab-bar-format-tabs
@@ -2133,7 +2146,7 @@ tab-bar-history-mode
 
         (unless (iconp 'tab-bar-back)
           (define-icon tab-bar-back nil
-            `((image "tabs/left-arrow.xpm"
+            `((image "symbols/chevron_left_16.svg" "tabs/left-arrow.xpm"
                      :margin ,tab-bar-button-margin
                      :ascent center)
               (text " < "))
@@ -2143,7 +2156,7 @@ tab-bar-history-mode
 
         (unless (iconp 'tab-bar-forward)
           (define-icon tab-bar-forward nil
-            `((image "tabs/right-arrow.xpm"
+            `((image "symbols/chevron_right_16.svg" "tabs/right-arrow.xpm"
                      :margin ,tab-bar-button-margin
                      :ascent center)
               (text " > "))