info for vim / gvim save user setting

First, specify your font by going to Edit > Select Font (btw, I'm on a Windows machine, so maybe the Linux menus are different).

Second, after you've selected your font, enter the command :mkvimrc!. This will write your font choice (and key mappings, etc) to your _vimrc file. This will NOT save your color settings if you're using a theme, however. To tell gVIM to use a color theme at startup, go to the next step.

Third, to specify your color theme, enter the command :e _vimrc. This will open your VIM settings file for editing. Scroll to the bottom of the file and add the line "colors blue". You can specify whatever color theme you want in place of "blue", provided you use the name of the theme itself. No file references are necessary. And it's case-insensitive too, so you could enter "colors Elflord" or "colors elflord" and be fine either way. Just make sure you write the file to disk before you quit gVIM.

Also, to change the winpos and geometry for gvim:

The position is given in screen pixels.  Now you can use the numbers to move
Vim somewhere else.  For example, to move it to the left a hundred pixels:

 :winpos 172 103

 Note:
 There may be a small offset between the reported position and where
 the window moves.  This is because of the border around the window.
 This is added by the window manager.

You can use this command in your startup script to position the window at a
specific position.

The size of the Vim window is computed in characters.  Thus this depends on
the size of the font being used.  You can see the current size with this
command:

 :set lines columns

To change the size set the 'lines' and/or 'columns' options to a new value:

 :set lines=50
 :set columns=80