Primary logotype
240×80 CRT frame with prompt and monogram. Default header and email signature. Animated blink bar preserved in SVG.
a0a · brand guide · v1.0
Looks like a terminal, because it is one.
a0a is a single product idea expressed as a brand: an offline developer toolkit that refuses to phone home. The identity is a phosphor-on-black CRT terminal. Green text. Scanlines. A cursor that blinks every 1.1 seconds. If it looks like something you could telnet into, we did our job.
# 01 · marks
Compact monogram
64×64 boxed square. Favicons, avatars, app tiles, inline use.
Horizontal wordmark
640×200 lockup with tagline. Banners, OG cards, cover images.
Mono (currentColor)
Single-colour variant. Print, deboss, embroidery, dark-on-dark contexts.
Sticker (512)
Oversized CRT monogram for merch, social avatars, and die-cut stickers.
# 02 · palette
phosphor
#39ff8f Primary accent — CRT phosphor green. The 'live pixel' colour.
lime-tip
#b8ff52 Secondary accent — the zero in a0a, gradient tip, highlight state.
field
#050d09 Main canvas. Almost-black with a green cast.
scanline
#0f2818 Stripe overlay for CRT texture.
dim-green
#5aa873 Meta, eyebrows, caret prompts.
window-red
#ff5f57 Traffic-light window dot. No other use.
window-y
#febc2e Traffic-light window dot. No other use.
window-g
#28c840 Traffic-light window dot. No other use.
# 03 · typography
- Display / wordmark
-
ui-monospace, 'SF Mono', Menlo, Consolas, 'IBM Plex Mono'Monospace only. Never a proportional serif. The whole brand is a terminal.
- UI headings
-
ui-monospace, 'SF Mono', 'IBM Plex Mono', monospaceUppercase + letter-spacing 0.12em for labels. Title case for page titles.
- Body
-
ui-monospace, 'IBM Plex Mono', Menlo, monospaceLine-height 1.55. Body measure 64ch. Numbers tabular.
a0a >_ The quick green phosphor jumps over the lazy CRT. 0 1 2 3 4 5 6 7 8 9 · 0x00 0xff · 1024 2048 4096
# 04 · voice
Plain, precise, terminal.
We read like a man page. Short sentences, imperative verbs, and no filler. 'Converts x to y' beats 'a revolutionary platform for transforming x into y'.
Offline is the entire pitch.
Every surface reminds the reader: no network, no telemetry, no account. Don't soften it. That's the whole product.
One joke per page, maximum.
We're allowed to be dry and occasionally sardonic. We are not allowed to be whimsical.
Never call ourselves a 'platform'.
We are a toolkit. Tools are held in the hand.
# 05 · do & don't
- DO Pair phosphor (#39ff8f) with field (#050d09). That's the default stack.
- DO Animate the blink bar at 1.1s opacity 1 → 0 → 1. It's the heartbeat.
- DO Use scanline pattern on every CRT-framed surface. Never a flat gradient.
- DO Preserve the three traffic-light dots on the wordmark frame. They are part of the mark.
- DON'T Don't colour the monogram in anything other than phosphor, lime-tip, or currentColor.
- DON'T Don't flatten or remove the CRT frame on the primary logotype.
- DON'T Don't swap monospace for a proportional or serif typeface anywhere.
- DON'T Don't add drop shadows other than the prescribed phosphor glow.
# 06 · merchandise
a0a is brandable. Here's where each mark lives on physical surfaces:
| Item | Size | Treatment |
|---|---|---|
| Enamel pin | 22mm | Mark only (mark-a0a.svg). Phosphor fill, matte black backing. |
| Die-cut sticker | 75mm | Sticker variant (sticker-a0a.svg). Holographic optional. |
| T-shirt back | 28cm | Wordmark or sticker. Forest or charcoal blanks only. |
| Notebook cover | A5 | Wordmark with tagline, deboss on kraft. |
| Mousepad | 900×400 | Scanline field + repeating mono mark at 40% opacity. |
| Keycap | 1u | `a0a` legend only. Phosphor dye-sub on field-black PBT. |
# 07 · legal
a0a is a product of Tabaconda LLC (Florida, USA).
The wordmark, monogram, CRT-framed logotype, phosphor-plus-lime
colour pair, and the tagline "offline developer toolkit, no
telemetry" are claimed as unregistered common-law trademarks™.
Contact hello [at] a0a.tools for licensing.