[Another installation problem]

I was having the same issue as you, but I think I've found a solution. You need to do this: Start Orb >> Control Panel >> Programs and Features >> 'Turn Windows features on or off' and make sure 'XPS viewer' under the 'Microsoft .NET Framework 3.0' is turned on (don't ask me why!). Click OK, allow the changes to be made and you should be able to run the installer and program.

Running Vista Home Basic SP2, I was getting the "System.IO.FileNotFoundException: Could not load file or assembly 'WindowsBase, Version=3.0.0.0..." error message when trying to install Paint.NET 3.5.5. I tried performing a Repair on .NET Framework 3.5 SP1, but that didn't help. A quick Google search found this thread, I turned on the XPS Viewer feature, and the Paint.NET 3.5.5 install went smoothly. Thanks to alesx for that solution!

[Request: color of pixel being hovered over]

Similar to how the position of the cursor is shown in the status bar in the lower-right, I would like to additionally see an RGB/Alpha value shown in the status bar. That way the color/alpha of a pixel can be determined without actually having to select the pixel using the :ColorPicker: Color Picker tool. I made a quick mock-up to serve as an example.

My apologies if this is already possible another way or if this feature has already been requested. I did a couple searches (one on "picker" and another on "color AND hover") but couldn't find anything similar to my request.

[Request: color of pixel being hovered over]

Similar to how the position of the cursor is shown in the status bar in the lower-right, I would like to additionally see an RGB/Alpha value shown in the status bar. That way the color/alpha of a pixel can be determined without actually having to select the pixel using the :ColorPicker: Color Picker tool. I made a quick mock-up to serve as an example.

My apologies if this is already possible another way or if this feature has already been requested. I did a couple searches (one on "picker" and another on "color AND hover") but couldn't find anything similar to my request.