The images---even though they're just placeholders---don't seem to have the same horizontal margin width. A screenshot is linked to below. https://drive.google.com/open?id=0B_iE50uqUIIbdGpQOUpzZzJOZnM
Git commit c057f37b6d4d2c8bcdbf33c1be2306dbb7d3e9b6 by Aleix Pol. Committed on 13/04/2017 at 09:57. Pushed by apol into branch 'Plasma/5.9'. Don't make the size of the icon match the size of the text M +14 -7 discover/qml/ApplicationDelegate.qml https://commits.kde.org/discover/c057f37b6d4d2c8bcdbf33c1be2306dbb7d3e9b6