The collapsed action bar on a Desktop system:

• should be less wide
• its lines separating the action groups should have a smaller padding on the left, when the action bar is collapsed.
• the action icons are closer to the left edge in the collapsed state of the action bar than they are in the expanded state.
• the opening/closing arrow should be closer to the right edge. Please align it with the left edge of the app close icon above - don't put it as close to the edge as we see it in the visual design, as else it will become unusable.

Please verify the existing design against the style guide available here: http://wiki.magnolia-cms.com/display/UX/Style+guides+for+Magnolia+apps#StyleguidesforMagnoliaapps-Mastertemplate