This area is to test or toggle unstable features that don't have options on the settings page. Most of these settings are only stored on your device. Clearing history or logging in to another device may require you to re-enable features.
Make sure you refresh the page after changing any of these settings.
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You may notice your chat/notifications windows not showing up. This will reset them to their default location.
Will make you improve at what you apply yourself in be it positive, negative or neutral from a person to persons' judgment. What are your goals to improve as a person? What are your drives? What makes you keep focus of those tasks?