You can read more about micro's colorschemes in the `colors` help topic
(`help colors`).
+* `colorcolumn`: if this is not set to 0, it will display a column at the specified
+ column. This is useful if you want column 80 to be highlighted special for example.
+
+ default value: `0`
+
* `tabsize`: sets the tab size to `option`
default value: `4`