> For the complete documentation index, see [llms.txt](https://cover-docs.diffblue.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cover-docs.diffblue.com/features/cover-plugin/writing-tests/testability-icons.md).

# Gutter icons

Cover Plugin provides several icons in the "gutter" area next to methods and classes in the IntelliJ editor panel - click the icon displayed to write, update, or delete tests.

## Action icons

<table><thead><tr><th width="111">Icon</th><th>Description</th></tr></thead><tbody><tr><td><img src="/files/PUlGQkG1lpbot5iLG8rq" alt="" data-size="original"></td><td>Displayed next to testable methods or classes in project files. Click the icon to write tests for the method or class.</td></tr><tr><td><img src="/files/UAT12CrVjE8GZWsMqAbm" alt="" data-size="original"></td><td>Displayed next to test classes and methods in project test files. Click the icon to update or delete tests for the method or class.</td></tr><tr><td><img src="/files/xYVvAhQZobYMjBXzdeUk" alt="" data-size="original"></td><td>Displayed next to your test methods in project test files. Click the icon to delete a test method.</td></tr></tbody></table>

## Status icons

<table><thead><tr><th width="116">Icon</th><th>Description</th></tr></thead><tbody><tr><td><img src="/files/vuGDoDZTSP54PCfxkxeo" alt="" data-size="original"></td><td>Indicates that Cover Plugin is unable to create tests for this method, unless the method is refactored to make it more testable. To allow Cover Plugin to write tests for such a method, the class should be extracted as an accessible named class.</td></tr><tr><td><img src="/files/bQh7cT6v1GBYzvC6j4Bb" alt="" data-size="original"></td><td>Indicates that Cover Plugin is unable to create tests that directly call this item, and that this is "by design". For example, Cover Plugin can't write tests for private methods.</td></tr></tbody></table>

## Disable the icons

To disable the icons in IntelliJ:

1. Go to `File -> Settings`.
2. Select `Editor -> General -> Gutter Icons`.
3. In the `Diffblue Cover` section, uncheck the boxes corresponding to the icons you want to disable.