* In a couple of places I had to resort to if(IsHighContrast) but mostly
this is just using system brushes consistently or not assuming black
text.
* The default DockPanel theme doesn't work well, so make a minimal high-
contrast theme for it and assign it everywhere.
* The pipeline flow was using fixed colours, use system brushes for the
different elements and switch based on high-contrast to ensure active
and inactive stages are visible (using ActiveCaption looks bad on
normal themes because it's a big block of colour).
* For some reason the flat toolstrip renderer doesn't handle white-on-
black themes, but the system one does. It's a little clunkier but it
shows up correctly without writing tons of custom painting code.
* Range histogram uses a properly contrasting colour for the border.
* Treelist views use a better system colour for selected rows when
inactive and hovered rows (when high contrast).
* Mesh view grids have a system background instead of white
* Various things (pipeline state, mesh viewe) set text colour when
colourising backgrounds of things instead of assuming black.
* I don't like the fact that it doesn't "just work" but this is mostly
limited by design decisions on the side of the vulkan loader.
* There is no good way with the loader to say 'please also include this
layer in the enumerated lists'. There is an all-or-nothing override of
layer searching, but that would break any layers the application might
actually rely on.
* On balance I've decided to go with this method, as it's a one-off
interruption for the user (unless someone is constantly switching
between installs).
* This means that e.g. decimal separator will always be . and similar
effects, which avoids the need to have culture specific formatting or
special-case handling around CSV export etc.
baldurk