[Bug]Sample colors not displaying correctly on Windows 10 (Fluent resource issue)

[CV-Tan]

When running the Nodify.workflow sample on Windows 10, the UI colors are wrong: large areas appear white, text and connectors are barely visible. It looks like a Fluent theme resource problem .

[miroiu]

Maybe we can define default colors for all used Fluent theme resources before including the actual Fluent theme resources that will override the default colors. But I don't have Windows 10 installed so I don't know if this approach works.