create launcher in gnome
I have been confused by the launchers in gnome desktop for a long time.
In short, there are two questions I want to ask:
(1) I know how to create a new launcher, just by right clicking the desktop.
But once a launcher is created, if I want to change the path of the command,
how can I do that? Select the launcher, Right click, choose the property,
there are 4 tabs: Basic, Emblems, Permissions, Notes. I see no entry for
the path of command.
(2) This one is about icon. I know how to find the icons for many common
kde/gnome programs/applications. But when I try to associate an icon
for a not-so-popluar program (for example, meld, the visual diff program),
I can not find where the corresponding icon is. And the question is if it is
the case that there is no default icon at all for those programs. so what we
can do is just to pick up any icon we like? I don;t think it is true, because
there is icon on the title bar when the program is running.
I know in windows the icon of an executable can be automatically extracted
if there is one. Why linux can not do that? Or simply I don't know how?
Many thanks in advance!