Recent content by phone and tab

Thank you. I found it. "Well, I found the solution after a good sleep. I went into setting>accessibility>VISION>then scroll to the BOTTOM, and found NEGATIVE COLOUR. toggle it ON and OFF. My headache is now gone!!!!" Since I just joined the chat group yesterday, I had made a terrible booboo in...

Well, I found the solution after a good sleep. I went into setting>accessibility>VISION>then scroll to the BOTTOM, and found NEGATIVE COLOUR. toggle it ON and OFF. My headache is now gone!!!!

Need help!! I saw a similar thread but it was on Galaxy phone. But, in my case, it is a Tab S2. It went into negative display when I was setting up 360 Security App. For the life of me, I have been looking into setting on both my Tab and the App setting for the past 2 days. None whatsoever...