hellcp added a comment.
That happens in Inkscape and other renderers with uneven (133%, 146% etc) magnification. When rendering also sometimes you will get a darker border when there is something dark behind an object. I used that to my advantage with new YaST Package Management icons F6513668: Screenshot from 2018-12-15 16-17-14.png <https://phabricator.kde.org/F6513668> F6513669: Screenshot from 2018-12-15 16-22-53.png <https://phabricator.kde.org/F6513669> Notice the difference between red elements, the first image depicts no darker object behind the red object and the second one depicts a darker object behind the red object (in the exact same position, exactly the same object, copied inside SVG XML file). REPOSITORY R266 Breeze Icons REVISION DETAIL https://phabricator.kde.org/D17623 To: ndavis, #vdg, cfeck, broulik, elvisangelaccio, ngraham Cc: fvogt, hellcp, ngraham, kde-frameworks-devel, michaelh, bruns