April 4th beta introduces some changes to the game properties dialog. I expect the same changes to be used in the new Settings dialog when it's ready. Maybe also in the Friends settings dialog at some point if Valve decides to merge dialog styles in the future.
Not all pages were changed and the ones that were don't seem to be entirely ready yet. It may be better to wait for more changes in the next few updates before trying to style the updated properties dialog.
April 4th beta introduces some changes to the game properties dialog. I expect the same changes to be used in the new Settings dialog when it's ready. Maybe also in the Friends settings dialog at some point if Valve decides to merge dialog styles in the future.
Not all pages were changed and the ones that were don't seem to be entirely ready yet. It may be better to wait for more changes in the next few updates before trying to style the updated properties dialog.