On the The install new theme form (/admin/theme/install) the cancel link is styled as a link when it should be styled as a primary button
There are three types of buttons supported in core and in the Seven style guide. Standard, primary, and danger.
It's important that the correct button types are used consistently throughout Drupal
Add the primary #button_type class to that form item, so it receives the correct class.
Beta phase evaluation
|Issue category||Bug because usability standards|
|Issue priority||Not critical because minor usability defect|
|Unfrozen changes||Unfrozen because it only changes markup|
|Prioritized changes||The main goal of this issue is usability|