Looking at the installation.qss Qt style sheets, there does not appear to be a difference between TW and Leap 15.2; the last commits were the same in both branches: TW: https://github.com/openSUSE/branding/commit/f38c135d21cb0d782eef78b2bb5e0784425578b5 Leap 15.2: https://github.com/openSUSE/branding/commit/f38c135d21cb0d782eef78b2bb5e0784425578b5 The style sheets are identical in both branches: git diff upstream/leap-15.2 upstream/tumbleweed yast/*.qss (nothing)