Unity 3D just shows orange square when resizing window. And since I'm not native english speaker, here is a screenshot showing what I'm trying to explain:
Ubuntu – Why does Unity 2D have “real time” window updating when resizing window and Unity 3D does not
compizunity
Related Solutions
Both of them can be changed in Compiz Config Settings Manager.
sudo apt-get install compizconfig-settings-manager
- To change color of Workspace Switcher, the settings you need to change is under Expo settings.
After changing the color the expo looks like this:
2. To change this one, you need to go to Grid settings under Window Management. You can search these in the Search bar to find them.
After changing this one, the highlight will look like this:
These are some extra settings you can configure to change the appearance even better:
To change the color of Window Resize:
To change the color of Wall when you change the workspace:
These are some other questions which help you in changing the other settings (removing the orange color completely):
How to change color of unity workspace border, and window resize
How do I change the colors of the Ambiance & Radiance themes?
How to change the color of the scroll bar?
How do I set the background color/pattern in a Nautilus window?
How do I change the "Selected Items" color?
I think you might have already installed Ubuntu Tweak and MyUnity. These two combined with Compiz Config Settings Manager will make you get pure control over your desktop using GUI.
The difference between Gnome Classic and Gnome Classic (no effects) is that the former runs Compiz. It seems Compiz has a Unity plugin, which if enabled, will bring forth that panel and menubar that is annoying you. See this link I found on the Ubuntu forums. The poster there used CCSM to disable the plugin. I don't know if that's the best way (CCSM doesn't have a great reputation, to say the least). You can search this site for alternatives to using CCSM.
Best Answer
I can't really answer your question in terms of why there's a difference, but I can tell you how to change the Unity 3D settings to give you your "real time" redraws.
The 'Normal' setting is the one you want, giving you real time updates of the window during resize. On my machine though this is painfully slow.
The Rectangle and Outline are very similar and draw a box representing the resized window.
Personally I like the 'Stretch' option, which gives you a faked-update of the window contents by simply stretching them.
Hope that helps.