Apple - Visually centered and change the path to more a accurate one.
Bytes: 1011 —> 580.
Dropbox - Visually centered and change the path to fix point alignment.
Bytes: 338 —> 350.
Twitter - Visually centered.
Bytes: 425 —> 431.
Ubuntu - Visually centered and change the path and color to a more
accurate one.
Bytes: 755 —> 674.
Vimeo - Visually centered.
Bytes: 375 —> 379.
WhatsApp - Visually centered and change the path and color to more a
accurate one.
Bytes: 646 —> 611.
Windows - Visually centered and change the path to fix the lines
between shapes.
Bytes: 274 —> 284.
Hope this helps.
FYI: Wikicommons have good SVG shapes and most companies have brand
guidelines with accurate logo renditions and colors.
