Enhancing iconography for project and item templates

[niels9001]

With the recent WinUI logo refresh, we need to update the project and item templates icon.

• For all templates, we currently use the same icon: this makes it more difficult to recognize, at first glance, what the template is for. From an accessibility and cognitive load point of view, this requires the user to read the text/description. For novice users, a small icon could help understand what the template is for. And lastly, we do not differentiate between the coding language (C# vs. C++).
• “Custom Control” is not the standard that XAML developers are used to: Templated Control would be the better.
• Project template titles do not follow the WPF/UWP standard for their title: WPF Blank App, Universal Blank App vs. Blank App, Packaged (WinUI 3 in Desktop)
• Titles + descriptions are pretty verbose and can be shortened.
• The old WinUI icon is used vs. the new icon.

Therefore, we've worked together with the design team to create a consistent, yet unique icon set for project and item templates:

Project templates
Original (left) vs. proposed (right)

Item templates
Original (top) vs. proposed (bottom)