- Fix: Add images (and references) for fallback (#135)

- Fix (canvg): blur export fix
- i18n (Chinese): A few fixes (#135)
- Optimize: Further image optimizing
- Refactoring: Avoid custom JS substitution syntax
- Refactoring: Reorder default extension list

dist/extensions/ext-helloworld.js

@@ -112,6 +112,9 @@ var svgEditorExtension_helloworld = (function () {
                     // Must match the icon ID in helloworld-icon.xml
                     id: 'hello_world',
 
+                    // Fallback, e.g., for `file://` access
+                    icon: svgEditor.curConfig.extIconsPath + 'helloworld.png',
+
                     // This indicates that the button will be added to the "mode"
                     // button panel on the left side
                     type: 'mode',