Height of lines in pcmanfm-qt

[romildo]

Please, how to modify a Kvantum theme in order to get smaller heights for the lines showing the files in pcmanfm-qt?

[tsujan]

All parameters are explained in the file doc/Theme-Config and its PDF counterpart doc/Theme-Config.pdf inside the source.

If you mean pcmanfm-qt's list view, it's controlled by the block [ItemView] in the kvconfig file of the theme you use: Only inside that block, and provided that you have text.margin=true in it, change the values of text.margin.top and text.margin.bottom, and restart pcmanfm-qt. You could also change frame.top and frame.bottom in the same block, but that might make the theme ugly. However, the changes will be for all lists in all Qt apps.

If you mean the icon view or something else, it may depend on the Qt plugins of the DE you use. KDE may enforce large margins on icon views; LXQt doesn't.