WPF SaaS App Polishing

My desktop-based SaaS is already feature complete in terms of core logic, but it still needs a final round of polish before we ship a production build. I need someone deeply familiar with WPF, C# and the .NET stack to step in for a short, focused engagement.

First priority is refining the user experience. The visual layer should feel clean, intuitive and responsive. I would like you to address:

• Color scheme and typography
• Layout and spacing
• UI components and controls

While the UX work leads the engagement, I will also rely on you for light feature tweaks, targeted bug fixes, regression testing and any last-mile tasks that keep the installer, configuration and release pathway smooth.

Ideal flow:
1. Evaluate the current codebase and map a quick UI improvement plan.
2. Implement the visual updates in XAML and related resource dictionaries, making sure styles remain consistent across views.
3. Tackle the queued minor features and open bug tickets, committing clean, well-commented code.
4. Run functional and smoke tests, then generate a stable build that installs without warnings.

Acceptance criteria will be: updated visuals matching the agreed mockups, zero critical bugs in the backlog, all unit and integration tests passing, and a signed-off production build.

Share a brief note about similar WPF applications you have taken to production and highlight any performance tuning or accessibility wins you delivered. I am ready to start as soon as I review the fit.