just close the coverage window with “x” button:
update: for the recent IntelliJ IDEA 2018.2.x, you can hide coverage by clicking left-hand side coverage bar (the colored one, close to line numbers) and then Hide coverage link:
just close the coverage window with “x” button:
update: for the recent IntelliJ IDEA 2018.2.x, you can hide coverage by clicking left-hand side coverage bar (the colored one, close to line numbers) and then Hide coverage link: