Big thanks to Felipe Escoto (Philip Scott) from Launchpad for creating a PPA for Elementary Tweaks for Loki. This tweaking program is suitable for you after installing elementary OS Loki. You can install it by doing these four command lines with total download around 100 KB.

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:philip.scott/elementary-tweaks
sudo apt-get update
sudo apt-get install elementary-tweaks


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