Follow up of https://gitlab.com/gitlab-org/gitlab-ce/issues/31847 ### Merge request commits tab - Update the icon  ### Merge request changes tab ##### Message bar - The background color is `#FFFAF4`. - It is moved to below `diff navigation`. * When the box and warning message stack up, it doesn't have a good visual hierarchy since those 2 elements are both prominent. (One is in a box with the gray background and another one has the orange background) - Icon: `warning` on [gitlab-svgs](http://gitlab-org.gitlab.io/gitlab-svgs/)  ##### Commit message box - The background of detail commit message is `#F2F2F2` and make it look like uneditable.  ### Commits view #### A discussion on commit outside of merge request (Discussion tab) - Copy: User @username started a discussion on commit [1a2b3c4d]() outside of this merge request a hour ago - `Resolve discussion` button is **disabled**. - When the mouse is over the `Resolve discussion` icon / button, the tooltip with "Commit comments made outside the context of this merge request cannot be resolved." shows up. | Button | Icon | | ------ | ---- | |  |  |