Adds app icon at 24px, 32px, 64px, 96px. This should give a cleaner look in system menus like App Finder, Whisker Menu.
Removes some leftover/draft content outside of the page border in SVGs. Removes export path strings from SVGs, metadata which Inkscape added on export.
Note: Inkscape has recently changed this to use relative paths so it shouldn't be an issue in the future.