Fix the new icons size on GrapherPanel.

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
Code style changes.

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
Fix improper TrackScheme toolbar jcombobox size.

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
Code style changes.

Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>
Do not display the 'Refresh' button on detector config panels.

It's confusing and useless now that the quality value does not match
pixel intensity at all.
Signed-off-by: Jean-Yves Tinevez <jeanyves.tinevez@gmail.com>