Advice to software developers

Disable intellisense in editor

I want to know the things I use; not depend on a search feature for each thing.
I want to "write" the code; to feel the flow of it; is it easy to write as well as read.
It's a more calm way to work; not having constant popups in the way.

Minimize number of colors

Find the balance between reading and scanning. If you "need" all the colors to read the code; then it's not readable.

Minimize backward jumps when reading

Organize your code in such a way that naturally flows from top to bottom. If the language permits it put definitions below their first use. This way if a reader is confused about something they can jump FORWARD, read about it and then jump back again and continue.