When ReactOS Application Manager is started, you can find strange visual glitch: blue rectangle after reactos.org hyperlink (look at the screenshot).
After some research, I have discovered that this problem have two sources:
1. In rapps.exe. This rectangle is text selection. Not usual selection - this is selected null character. Edit control, which is used in rapps, RichEdit20W, allows this behavior.
2. In riched20.dll. When you start rapps in Windows, there is no blue rectangle. This happens because RichEdit control is not focused, and thus it's selection is invisible. Wine's riched20 don't follows this convention.
I think both this problems needs to be fixed.
1. Rapps logic can be easily corrected. Please, look at the proposed patch.
2. Riched20 is harder to fix. I don't know how to do this, but I've made the test program. Sources and exe are attached.