Official Logo of the Forth Standard, EuroForth and theForth.net.
When creating the Forth net, I wanted a simple and sleek looking Logo and was inspired by Haskell's simple lambda Logo. In Forth the only unchangeable syntax element is whitespace - which does not make a great logo ;)
So what is more iconic than the colon definition's : and ; - let's use that!
The Logo is pixelized and should not use any soft gradients for the Text and the shadow. When scaling the logo use no interpolation to keep the hard edges.
The colon and the upper dot of the semicolon consist of a rectangle 16 by 12 units.
The shadow is inset by 1 unit and 1 unit.
The comma part of the semicolon only 11 units tall.
Stairs to the right are 4 by 4 units.
The gap to the left is 4 by 5 units.
The (semi-)colon-points are separated by 12 units horizontally and 8 units verically (not counting shadows).
The rectangle of the comma of the semicolon is 1 unit less tall.
The Logo consists of 3 colors:
Background Color: Use a simple color or a colorful gradient. Do not soften the gradient.
Text Color: Make sure to have enough contrast. For light backgrounds use #424242, for dark backgrounds use #FFFFFF.
Shadow Color: Match with background color, but keep it closer to the text's brightness.
Examples:
| Usecase | Text | Shadow | Background | Comment |
|---|---|---|---|---|
| Forth Standard* | #424242 |
#b71c1c |
#ef5350 |
Uses material design 'red' |
| the Forth net | #424242 |
#827717 |
#c6ff00 |
Uses material design 'lime' |
| EuroForth | #ffffff |
#c6c6c6 |
#337ab7 |
Also intended for printing |
* intended as the main logo for Forth
tl;dr: Public Domain
long:
Although I would prefer a copyleft license I want to enable widespread usage also in cases where it might be considered comercial use. So I think Public Domain should give you the freedom you need. That being said, I would appreciate attribution if it suits your use case ;)