Now you can use SVG widget in GNU Emacs. That is, use an SVG image or
fragment as background for push-button widget in Emacs buffer. You can also
specify the width and height of the widget for finer control. Generally
speaking, you can use any type of image for this purpose. But SVG suits
best because you can draw widget of any size without any distortion.

The ability to use SVG fragment means you can define multiple symbols in an
SVG and use the same as a sprite sheet for your UI requirements. Thus the
number of files to be managed is reduced.

Another use case would be better looking customize form. Or at the very
least, rounded "Save" and "Cancel" buttons. In other words, a more visually
appealing UI in graphical environments while maintaining the promise of
Emacs in terminal.

*Sample API: *svg-widget (svg frag &optional width height &rest args)

*Code:* https://gitlab.com/atamariya/emacs/-/blob/dev/lisp/svg.el
<https://www.blogger.com/#>

*Details:*
https://lifeofpenguin.blogspot.com/2021/10/svg-widget-in-gnu-emacs.html
*Patch*
modified   *lisp/wid-edit.el*
@@ -353,6 +353,7 @@ widget-specify-button
   "Specify button for WIDGET between FROM and TO."
   (let ((overlay (make-overlay from to nil t nil))
     (follow-link (widget-get widget :follow-link))
+    (display (widget-get widget :display))
     (help-echo (widget-get widget :help-echo)))
     (widget-put widget :button-overlay overlay)
     (if (functionp help-echo)
@@ -360,6 +361,7 @@ widget-specify-button
     (overlay-put overlay 'button widget)
     (overlay-put overlay 'keymap (widget-get widget :keymap))
     (overlay-put overlay 'evaporate t)
+    (overlay-put overlay 'display display)
     ;; We want to avoid the face with image buttons.
     (unless (widget-get widget :suppress-face)
       (overlay-put overlay 'face (widget-apply widget :button-face-get))