From a developer's point of view, cloning large parts of the GUI (which the Graphics config is a big part of) is not a good idea. That almost always increases the amount of code that needs to be maintained, while actually doing nothing to tone down GUI complexity. The problem with per-game settings in the Properties menu is that there are more options than we can cleanly fit in that space, not unless someone has some really fancy UI experience.
Personally, I think an option that exports the current settings from the GUI straight to a game's .ini file works as the best compromise. It lets users interact graphically with their settings and is relatively easier for new users and advanced ones alike to quickly change things. It also adds the least amount of cruft to Dolphin's already overgrown UI.
Personally, I think an option that exports the current settings from the GUI straight to a game's .ini file works as the best compromise. It lets users interact graphically with their settings and is relatively easier for new users and advanced ones alike to quickly change things. It also adds the least amount of cruft to Dolphin's already overgrown UI.