D22259: Reduce default sidebar icon size

[Steven vanZyl]

stevenv abandoned this revision.

REPOSITORY
  R223 Okular

REVISION DETAIL
  https://phabricator.kde.org/D22259

To: stevenv, #okular, #vdg, ngraham
Cc: ngraham, aacid, ndavis, okular-devel, maguirre, fbampaloukas, joaonetto, 
kezik, tfella, darcyshen