Using this set of icons, you can choose a letter or number combination for any of the existing programs.

History reference

The idea is not original and has already been implemented in the corporate style of CS 3 (http://rogix.livejournal.com/96122.html) and the Fusion program from EyeOn (http://yuras.livejournal.com/25152.html):

"Universal Icons"

Specifications:
⁃ 256 × 256;
⁃ PNG-24;
⁃ Transparent;
Free Fontin Sans font from Exljbris (http://www.josbuivenga.demon.nl/fontinsans.html).
Equipment:
⁃ 0—99;
⁃ AZ;
⁃ Aa — Zz (Aa, Ab, ... Zy, Zz).
Color execution:
⁃ R , G , B ;
⁃ C , M , Y , K ;
⁃ Gray color (240, 240, 240) .
Total:
6416 icons, 802 each color.
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For example , this icon can be used to designate Photoshop:

And such - for the Opera:

Download the kit here: narod.ru/disk/224208000/Universal_icons_by_Slwoth.zip (25.6 MB)

You can use the icons, for example, in the PunkLabs RocketDock program (for Windows, rocketdock.com ):

Afterword

This icon set has flaws that may be fixed in the future. Here are some of them:
⁃ Lack of letter combinations AA — ZZ (AA, AB, ... ZY, ZZ);
⁃ Lack of Cyrillic letter combinations (although, then you have to be consistent - create sets for all languages);
⁃ Lack of combinations of letters and numbers that would be useful for designating 7-Zip , 1 by 1, and other programs;
⁃ Lack of manual kerning;
⁃ Insufficient number of flowers.