Frosted Theme for RISC OS 5 (!ThemeDefs)
The Frosted desktop theme as a !ThemeDefs package, with three wallpapers and !Fonts. Merge it with your existing !Boot. The larger download adds !Store, !PackMan and !RiscBench.
Miscellaneous
The desktop theme, disc image, browsers and applications, whichever machine you run.
Shield Theme for RISC OS 5
A light, silver desktop theme, and a change of mood from Frosted. The archive also carries !ThmeSetup, a new !ThemeDefs application that switches theme straight away without a reboot and lets you set the desktop font size. Copy the Shield folder into your !ThemeDefs Themes folder, then pick it in !ThmeSetup.
Frosted HardDisc4 Image
A standard HardDisc4 image for Frosted: PackMan, !PlingStore, ChatCube and StrongED, Frosted icons throughout, AcornSSL 1.07 and a complete !System for web browsers.
NetSurf 3.12 (Frosted, 2026 certificates)
NetSurf 3.12 development builds from the NetSurf test build site, unchanged apart from a certificate bundle generated from Mozilla's CA list. Build 7432 is the newer of the two; build 7429 also carries the bundled home page images.
Iris Frosted
The !Iris web browser in Frosted style, with a new user agent. Version 1.039v2 updates the banner and interface. Two packages were published; they differ only in how the !IrisRAM launcher is arranged, so either will do. Iris is a port of WebKit 2.40.5, so it handles JavaScript and HTML 5 over TLS.
RISC OS !CA Certificates Bundle
A bundle of 122 new root certificates for RISC OS.
RISC OS Viewer
Viewer opens documents and images on RISC OS. This alpha adds fixes to the PDF and PNG handling.
| Filetype | Type | How it draws |
|---|---|---|
&ADF | Native engine | |
| JPEG | &C85 | c/pdfjpg |
| PNG | &B60 | c/pdfpng |
| Draw | &AFF | DrawFile_Render |
| BMP | &69C | c/pdfbmp |
| GIF | &695 | c/pdfgif |
| TIFF | &FF0 | c/pdftiff |
| Photoshop | &1B0 | Flattened composite |
| ArtWorks | &D94 | Native walk to Draw |
| Impression | &BC5 | Text preview |
| Ovation Pro | &B27 | Text preview |
| Ovation | &CDD | Text preview |
| Impression DDF | &D93 | Text preview |
| Ovation Pro DDL | &B25 | Text preview |
| Sprite | &FF9 | SpriteOp 52 |
RISC OS Programmer's Reference Manual 2026
The RISC OS 5 Programmer's Reference Manuals as a single PDF: 2,538 entries and 24 local supplements, laid out for reading. Compiled from the RISC OS Open documentation wiki, which keeps its original owners' rights.
RISC OS 5.30 User Guide
The complete user guide, from the desktop and the Filer to configuration, printing and the bundled applications. Copyright Acorn Computers Limited 1996, with updates copyright RISC OS Open Ltd 2018-2024, published under the Apache License 2.0.