ThreadShelf Enhanced 1.4.2 expands the same HTML formatting path for user and assistant bubbles. Original conversation text remains unchanged for copying and exports. Inline code, fenced code and escaped HTML are source text.
Existing inert headings, paragraphs, lists, tables, emphasis, underline, mark,
superscript, subscript, pre, code and kbd remain supported. Added formatting
includes span, div, small, abbr, time, details/summary, definition
lists, samp, var, wbr and explicit safe links.
The accepted inline CSS properties are color, background-color, font-weight,
font-style, text-decoration, text-decoration-line, text-align and
vertical-align. Colors support standard names, hexadecimal values and bounded
numeric RGB/HSL forms. For example:
<span style="color:#e64340;background-color:#a8c0ff">color</span>HTML attributes are a separate allowlist: title, valid lang/dir, safe link
href, bounded table/list metadata, time datetime and details open.
Links accept HTTP, HTTPS, mailto and explicit fragment identifiers. HTTP(S)
credentials are rejected; links receive noopener noreferrer and open separately.
Unsupported tags, malformed markup, or tags containing unsupported attributes or CSS remain visible source. No archived classes, IDs, event handlers, data attributes, forms, scripts, stylesheets, SVG/MathML markup, embedded documents, media tags, CSS resource URLs, positioning, animations, or application selectors are admitted by this path. Markdown images retain the existing controlled image loader; fenced SVG retains its separate inert image preview.
The HTML-token formatter reconstructs a deliberately small grammar without parsing archived markup into a live DOM. The final DOM sanitizer repeats style and attribute checks. This is a formatting subset, not a general HTML/CSS viewer.