Monospace icon font in Emacs? - emacs

I am inserting icons from FontAwesome and other icon fonts into Emacs but I would like to get them aligned with the monospace font I use (DejaVu Sans Mono). Is this possible?

I have found a workable solution. I have installed a number of Nerd Fonts. These mostly solve the problem, but occasionally the alignment was still off by a few pixels. However, it seems that, when a glyph is available in multiple fonts, Emacs will try to match its width to that of the fixed width font in use. So, installing sufficiently many Nerd Fonts has solved the problem for me.

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Why does my terminal in VS Code have weird spacing and how can I fix it?

This is what my settings is looking like:
This is the weird spacing between letters in terminal:
Why is the font on my VS Code's terminal have this weird spacing between letters? It is really bugging me and I tried to change the font in the settings to a monospace font (inconsolata), but that hasn't worked.
I think those big spaces between the characters comes from your exotic chosen font (Inconsolata). So change only "terminal.integrated.fontFamily": "Inconsolata" back to the default font:
"terminal.integrated.fontFamily": "Monaco"
And look, to need the double-quote, and not some triple quote like in your screenshot!
This usually happens when the chosen font is not installed on your system. Try to revert the font settings by removing or commenting these two lines:
"terminal.integrated.fontFamily": "Inconsolata"
"Editor.fontFamily": "Source Code pro"
The default font is usually the default monospace font of your system.
VS Code only accepts unicode fonts.
Try to setup:
"terminal.integrated.fontFamily": "monospace"
Using "MesloLGS Nerd Font Mono 11" as the integrated terminal family font fixed this issue.
Don't forget to make sure it is the integrated terminal family font you're setting and not the editor's family font.

VS Code Tabs will not line up letters

I was trying to make a grid area in CSS, and I realized my tabs will not line up so I can make it a nice square. I tried everything I can think of to get them to line up. I tried
Tab width
Font size
Letter spacing
Font weight
editor.renderWhitespace
Different fonts such as Arial, Ubuntu Regulat, Adobe Fan Heiti Std,
editor.fontLigatures
I am not sure how I can fix this? Here's a screenshot of what I'm talking about
Notice how the letters don't line up at all, they're all tabs, not spaces. I tried this in sublime text 3 and it lines up, how can I get this to line up in VSCode?
Use a monospace font like Consolas, 'Courier New', monospace.
To reset to the defaults, click the gear next to the Editor: Font Family setting.
The given answer is incorrect. I'm using OCR or Proggy, both monospace fonts, and never had a problem until a recent update - now my tabs no longer line up. This is an issue with an update or change in the settings that MS caused.

Fonts in Netbeans smaller than desired

My Netbeans 7.4 claims, it uses Courier New 18pt font:
However, when I set my Notepad++ (and any other piece of software on my Windows 7) to the very same typefaces and font size:
Font clearly looks much bigger.
Can someone enlighten me, what am I missing? How can two programs claim that they use the very same font for text display and display that text it two different heights?
Maybe have you unconsciously made zoom. Try Alt + Mouse Wheel or defined there:
https://blogs.oracle.com/geertjan/entry/scroll_in_netbeans_editor_to

Letterspacing in GNU Emacs

I'm using GNU Emacs on 64bit Ubuntu. Monaco font works well, except the gap between each letter is too wide, thus causing each line of codes to spread too widely. I thought maybe it was a problem with the font, but then Ubuntu terminal was capable of handling the exactly same font with a narrower horizontal margin.
Is there any method I can try to adjust the horizontal linespacing in Emacs?
Have you checked that Emacs and terminal really display the font differently? In your screenshot, the font size itself in Emacs is bigger.
Anyways, you can choose different spacing values when setting a font by appending them to the font name, e.g. "Monaco-10:spacing=110". Try if you can get the behaviour you want this way.
EDIT: Maybe the second paragraph of my answer should be disregarded. I basically guessed this based on the output of describe-font, but further experiments with it didn't yield satisfying results.
Try:
M-x customize-face
At the prompt enter "default"
I adjust the font-width from medium to condensed and see if that helps.
Otherwise you might just try a different font. SHIFT + Mouse-1 should bring up a menu where you can change the default font from Courier.
I suffer the same problem, but then I googled into this post:
http://www.gringod.com/2006/11/01/new-version-of-monaco-font/
it definitely solves my issue.
The fix is rather simple, download the linux version of Monaco font and everything would be fine. :)

Letterspacing in Eclipse code editor

Is there any way to change the letter-spacing of text in Eclipse's code editor?
Maybe you can try changing from a fixed width font to the variable width font like Verdana or Tahoma. Window->Preferences->Appearance->Colors and Fonts->Basic->Text Font
If you mean the java code editor in Eclipse this is not possible. The editor is not a word processor. You can only change the font setings (typeface, style, color, size).
If you are referring to this kind of letter spacing, then no, I do not think so.
Not in the sense that a typography system allows you to tweak the appearance of text on a printed page.
The default for me is Courier New Regular 10. You can change the size to 12 or some other size.
Are you trying to change the kerning rules? Kerning is positioning different letters in a variable-width font. For instance in the word "We", the "e" is tucked in a little bit under the "W". The page-layout software that magazine publishers use can control this.
Fonts are opaque to Eclipse; it doesn't give you a way to change the rules within the font. Unfortunately the best you can do is try the different fonts and sizes until you find one that has kerning rules that work, more or less.