SVG effects in GNU Emacs
Emacs is quite a capable SVG renderer - thanks to librsvg . You can render SVG filters ( blur and shadow ) and gradients ( linear and radial ) in Emacs buffer to create attractive UI as you like it. These are defined in variable image-svg-defs which can be reused using SVG fill attribute ( fill :"url(#grad1)"). The tree structure is created using speedbar . Speedbar uses ezimage to create the icons from images. In Text UI, icons are turned off. You can also turn it off by setting ezimage-use-images to nil. If you are maintaining your SVG icons as a sprite sheet, you can use <use/> tag to easily include icons. You can also look at SVG widget option for automated widget generation. ;; image-svg-icon assigns a default icon class to tthe image which can be suitably styled (insert-image (image-svg-icon '("bi file-x") 100 100 ".icon{stroke:red}")) ;; Example using CSS style definition (insert-image (image-svg-icon '("bi file-x...