After Visual Studio version update colors reset to default values

[ipavel83]

After Visual Studio 2022 version update from 17.0.2 to 17.0.4 Colors reset to default values.
Reproduced with Visual Studio 2019 update 16.11.7->16.11.8

Either one solution will be better than now: different default colors for light scheme, load/save colors to file, or just don't reset values after update.

[Tim-Maes]

Decorating setting entries in the settings.designer.cs file with NoSettingsVersionUpgrade attribute resolves this issue, but that file is auto generated, need to find out how to set this on the settings.settings (or app.config?).

Another solution is to check Settings.Default.Upgrade & check setting values with GetPreviousVersion() manually in code when the extension initializes.

I'm opening another issue to apply different defaults based on light/dark theme on install. A nice to have feature.