-webkit-image-set()
Like image-set(), it is collapsed only in the background selection path, with a fixed 1dppx target; resources are not reselected dynamically for DPR changes. Parsing happens before the entire background value is split into layers, and a source is selected only if the whole value starts with image-set. It does not recursively expand image-set within arbitrary layers; trailing shorthand and multilayer text are also limited.
image-set()的前缀别名Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:342
Report an issue with this entry →conic-gradient()
Angular color stops are not implemented: the shared parseGradientStopPosition explicitly rejects deg/rad/turn. Support for the from angle does not imply support for angle stops. The from angle supports deg/rad/grad/turn, with an at center and percentage/implicit stops. The backend uses a sweep shader; the mask backend has no conic branch. Supports single-position and double-position color stops, affine length/percentage/calc stops and color hints. Stop correction is deferred until the actual gradient length is known. Explicit interpolation spaces are limited to srgb/srgb-linear/xyz/hsl/lch; the last two support shorter/longer/increasing/decreasing hue. Spaces such as lab/oklab/oklch/display-p3 are not included. Color hints use a bounded approximation with nine additional color stops. The background, border and list-image paths use these features; the mask path does not inherit this full capability set.
conic-gradient([from <angle>] || [at <position>] || [in <supported-space> …]?, <percentage-color-stop-list>)Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:741
Report an issue with this entry →currentColor
Contextual resolution exists for color inheritance, backgrounds and several border/decoration paths. Calling Color::parse alone does not establish support. Substitution of currentColor inside nested functions depends on the specific property path.
currentColorHistorical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1228
Report an issue with this entry →filter()
A KUI-specific CSS image function with dedicated parsing and painting in background/background-image, border-image-source and content. The available filters match the filter property. It is not an SVG URL filter reference or a standard general-purpose CSS image function.
filter(<url-or-gradient>, <filter-list>)Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1925
Report an issue with this entry →image-set()
In background/background-image, candidates are parsed and collapsed into a single image. Selection uses a fixed 1dppx target and the nearest candidate; equal distances keep the first candidate. Supports x/dppx/dpi/dpcm. type only filters through a MIME allowlist and does not prove that a decoder is available. Nonpositive resolutions are discarded; calc resolutions are simplified to 1x. This is not general support in arbitrary image contexts. Parsing happens before the entire background value is split into layers, and a source is selected only if the whole value starts with image-set. It does not recursively expand image-set within arbitrary layers; trailing shorthand and multilayer text are also limited.
image-set([ <url> | <image> | <string> ] [<resolution> || type(<mime>)]? #)Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:74
Report an issue with this entry →linear-gradient()
Supports deg/rad/grad/turn angles and corner directions; the default points downward. Supports single-position and double-position color stops, affine length/percentage/calc stops and color hints. Stop correction is deferred until the actual gradient length is known. Explicit interpolation spaces are limited to srgb/srgb-linear/xyz/hsl/lch; the last two support shorter/longer/increasing/decreasing hue. Spaces such as lab/oklab/oklch/display-p3 are not included. Color hints use a bounded approximation with nine additional color stops. The background, border and list-image paths use these features; the mask path does not inherit this full capability set.
linear-gradient([<angle> | to <side-or-corner>] || [in <supported-space> …]?, <color-stop-list>)Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1281
Report an issue with this entry →radial-gradient()
Supports circles/ellipses, four size keywords, explicit radii and center positions, including some affine calc coordinates. Defaults to ellipse/farthest-corner/center. Supports single-position and double-position color stops, affine length/percentage/calc stops and color hints. Stop correction is deferred until the actual gradient length is known. Explicit interpolation spaces are limited to srgb/srgb-linear/xyz/hsl/lch; the last two support shorter/longer/increasing/decreasing hue. Spaces such as lab/oklab/oklch/display-p3 are not included. Color hints use a bounded approximation with nine additional color stops. The background, border and list-image paths use these features; the mask path does not inherit this full capability set.
radial-gradient([circle | ellipse] || [closest-side | closest-corner | farthest-side | farthest-corner | <size>] [at <position>]?, <color-stop-list>)Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1388
Report an issue with this entry →repeating-conic-gradient()
Angular color stops are not implemented: the shared parseGradientStopPosition explicitly rejects deg/rad/turn. Support for the from angle does not imply support for angle stops. The backend converts the first and last positions into sweep start/end angles and repeats. Supports single-position and double-position color stops, affine length/percentage/calc stops and color hints. Stop correction is deferred until the actual gradient length is known. Explicit interpolation spaces are limited to srgb/srgb-linear/xyz/hsl/lch; the last two support shorter/longer/increasing/decreasing hue. Spaces such as lab/oklab/oklch/display-p3 are not included. Color hints use a bounded approximation with nine additional color stops. The background, border and list-image paths use these features; the mask path does not inherit this full capability set.
conic-gradient对应参数，以首末百分比色标区间重复Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1784
Report an issue with this entry →repeating-linear-gradient()
Supports repetition periods that differ from the full box width, degenerate zero periods and negative stops. Supports single-position and double-position color stops, affine length/percentage/calc stops and color hints. Stop correction is deferred until the actual gradient length is known. Explicit interpolation spaces are limited to srgb/srgb-linear/xyz/hsl/lch; the last two support shorter/longer/increasing/decreasing hue. Spaces such as lab/oklab/oklch/display-p3 are not included. Color hints use a bounded approximation with nine additional color stops. The background, border and list-image paths use these features; the mask path does not inherit this full capability set.
linear-gradient对应参数，按首末used stop间距重复Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1782
Report an issue with this entry →repeating-radial-gradient()
The radial shader radius is reduced to one period and repeated. Supports single-position and double-position color stops, affine length/percentage/calc stops and color hints. Stop correction is deferred until the actual gradient length is known. Explicit interpolation spaces are limited to srgb/srgb-linear/xyz/hsl/lch; the last two support shorter/longer/increasing/decreasing hue. Spaces such as lab/oklab/oklch/display-p3 are not included. Color hints use a bounded approximation with nine additional color stops. The background, border and list-image paths use these features; the mask path does not inherit this full capability set.
radial-gradient对应参数，按首末used stop间距重复Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1783
Report an issue with this entry →url()
Image sources are parsed separately in background(-image), border-image-source, list-style-image, content, mask-image and other contexts, then loaded through the image cache. Actual formats, network loading and path resolution depend on the context and build. SVG images depend on KUI_SVG_BACKEND; url() alone does not imply support for SVG filter or clipping references.
url(<quoted-string> | <unquoted-url>)Historical audit version: 3.59.0 · 2026-11-01 Asia/Shanghai (UTC+08:00)
Verification scope
Imported static source audit from 2026-11-01 / 3.59.0. References are available; this is not a fresh runtime verification of this release.
src/css/style_apply_text_bg.cpp:1978
Report an issue with this entry →