- Update back to colour logo
- Change logo alignment and positioning to make it generally
left-aligned, have some nice padding above and below it, and to not
occupy the full window width.
This change adjusts the layout for the progress bar, write button and
cancellation buttons such that they are all placed on the same layout
'row', with the progress bar stacked as before, and the
write/cancel/cancel buttons stacked as a column.
This is not ideal, but probably as sensible as we can get inside this
layout paradigm.
