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NEOchrome

bitmap graphics editor for the Atari ST computer family

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionNov 22, 2025
Entity authorityQ6953513
Source-derived summary

NEOchrome is an early color bitmap graphics editor for the Atari ST. It was written by Dave Staugas, a programmer at Atari Corporation and co-author of the ST's operating system. NEOchrome supports hardware-supported color cycling to give the impression of animation. A color cycling waterfall, created with NEOchrome, was one of the iconic images of the early Atari ST.

Following in the footsteps of MacPaint and the Apple II version Mouse Paint, both released in 1984, NEOchrome uses the then-novel representation of painting tools by icons (in addition to other GUI elements).

A pre-release version (v0.5) was included with the system disks of the first STs. Version 1.0 arrived later and was bundled with several versions of the ST. Although not officially public domain, this version was often treated as such, and was never actually sold. NEOchrome enjoyed a relatively high level of popularity within the ST community, even in the face of more advanced packages such as DEGAS and Deluxe Paint.

NEOchrome Master

Although there were no further official versions, an unofficial revision called NEOchrome Master was released by the Atari demo scene group Delta Force's Till Bubeck (programmer of The Return of Medusa) in the early 1990s.

NEOchrome Master was built by disassembling the binary program "NEOchrome 1.0". The resulting source code was uncommented and hard to read, but could be assembled back into the same binary program as before. This allowed the author to extend the program.

Editorial summary

“NEOchrome” enters the record as bitmap graphics editor for the Atari ST computer family. Crown Archives preserves that source wording while asking what NEOchrome, bitmap and graphics can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1984—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around NEOchrome, bitmap and graphics.
Editorial analysis

Why this record matters

“NEOchrome” is worth following because a concise public description often conceals a longer documentary argument. Here, NEOchrome, bitmap and graphics provides the most credible route into that argument.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Nov 22, 2025. The linked authority identifier is Q6953513. The first chronological checks are 1984.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  2. Expand the search: follow NEOchrome primary sources, NEOchrome archive and NEOchrome research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

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Source & attribution

This entry incorporates text from NEOchrome” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.