Options
The GIMP's default language is that of your system. You can select another language in the drop-down list. You have to start GIMP again to make this change effective. Please refer to 1.1. szakasz - Changing the Language.
By default, GIMP shows miniature previews of the contents of layers and channels in several places, including the Layers dialog. If for some reason you would prefer to disable these, you can do it by unchecking Enable layer and channel previews and Enable layer group layers previews. If you do want previews to be shown, you can customize their sizes using the menus for Default layer and channel preview size and Navigation preview size.
You can also customize the Undo preview size and the Navigation preview size.
Pressing Configure Keyboard Shortcuts… brings up the Keyboard Shortcuts Dialog, which allows you to see all actions and assign or change their keyboard shortcuts.
If you do not want your changes to be available in future GIMP sessions, uncheck Save keyboard shortcuts on exit. If you don't want to save shortcuts on exit every session, you can save the current settings at any time using the Save Keyboard Shortcuts Now button, and they will be applied to future sessions. If you decide that you have made some bad decisions concerning shortcuts, you can reset them to their original state by pressing Reset Keyboard Shortcuts to Default Values. You can also choose to Remove All Keyboard Shortcuts.