In my search for good keyboard that support AMOLED mode, I found out about FlorisBoard which looks perfect to me. It even supports Halmak Keyboard Layout, which I didn't expect to find at any Android Keyboard.
Which make me ask, How is this keyboard not popular?
In addition to glide typing, Heliboard also has some of the best layout customization options out there, such as the option of disabling context-dependent menus. I HAAAAAATE how other keyboards change the keys available on the period key menu on URL bars. I use colons and forward slashes way more often than ".com", which I use... well, never.