After logo upload, the "Reset to Default Logo" link reverts to the default Confluence colour scheme. This is because there is now a relationship between the logo and the colour scheme in Confluence 5.x - uploading a logo will customise your colour scheme to match the logo. Resetting the logo to default also updates the colour scheme to match, but this is not communicated and there is no option to undo it.

Found in Confluence 5.0.3, 5.1.3.

h3 .Steps to Reproduce:

1. In the admin panel, create a custom colour scheme.
2. Upload a new site logo. The colour scheme changes to match the logo.
3. Click the Reset to Default Logo button.
   • Notice that color scheme reverts to the standard Atlassian colour scheme, not the previously selected custom colour scheme.

Desired behaviour

One of these options:

1. A way to undo the colour scheme change after resetting the logo
2. Stop the logo reset changing the colour scheme
3. Communicate the impending colour scheme change in the link text