Per-token font size in Sublime Text 2

Apologies if this has already been answered but I couldn't find any duplicates.

Is it possible to set font sizes on a per-token basis in Sublime Text 2? For example, all 'function' tokens would be size 10 whereas 'functionName' would be size 30? I've put together a rough mock-up of what I want to achieve:

The motivation here is to make it easier for you to focus on the important parts of your code - especially when skimming. I would suspect that such a thing should be possible given that, by default, ST2 already applies different fonts to different tokens (e.g. 'var' vs. 'c = a;' in switchVars()).

If it is not a feature, does ST2 provide the ability to implement this as a plugin? Thanks a lot!

Unfortunately, this is not possible, as there are no directives in the API or in color schemes for dealing with font size at that level of granularity.

However, it is possible to provide additional highlighting to your color scheme (.tmTheme file) so that function definitions stand out. It looks like you're using Monokai, so open Packages/Color Scheme - Default/Monokai.tmTheme and add the following to the end, just before the final </array>:

        <dict>
            <key>name</key>
            <string>Function definition</string>
            <key>scope</key>
            <string>meta.function</string>
            <key>settings</key>
            <dict>
                <key>background</key>
                <string>#000080</string>
            </dict>
        </dict>

This will highlight your function definition lines in a dark blue: