The Material Oxford Blue VCL Style is part of the new premium styles introduced in 10.3.1. It includes Green or Blue UI elements. Once installed you will find these files two style files in your styles folder:
You can apply the styles to your VCL applications by visiting Project ➜ Options ➜ Application ➜ Appearance, and adding one of the Material Oxford Blue styles to your project, and optionally setting it as the default. At runtime, you can change styles with the code:
Here is a preview of the two variations.
Material Oxford Blue
Material Oxford Blue SE