[ PICTOGRAM CASE HISTORY ]
Material Symbols Backlight Low.
Outlined icon
Usable with support
Visible referent: backlight low. Intended message: The icon must communicate Backlight Low in a digital interface.. The report separates observed asset evidence, submitted context, and public evidence signals.
0.66
PCS
0.40
CLL
0.48
NTR
[ FEATURED PICTOGRAM ]
pictoclarity / material-symbols-backlight-low-outlined
Output - Material Symbols Backlight Low Icon (Outlined)
Assessing the communicative effectiveness of the Backlight Low icon
This reviewed catalog report estimates clarity for Backlight Low in default interface contexts. Scores are screening estimates and do not replace user testing.
0.66
PCS
PictoClarity Score
0.40
CLL
Convention Learning Load
0.48
NTR
Neurocognitive Transfer Risk
[ HOW THE CASE READS ]
From Input To Public Evidence.
The application stores structured evidence. The public page turns it into a readable pictogram case history.
01
Submitted Context
Framework output for the Material Symbols Backlight Low icon in the outlined style.
02
Primary Finding
Primary referent: backlight low.
03
Metric Reading
Implied function: The icon must communicate Backlight Low in a digital interface..
04
Public Recommendation
Run representative user testing before publication.
[ EVIDENCE SCREENING ]
What The Estimate Surfaces.
Semantic Transparency Score
Input
Expected
Estimated
0.59
Confusion Risk Index
Input
Possible
Estimated
0.51
Readability Test Score
Input
Visual
Estimated
0.83
PictoClarity Score
Input
Estimated
Estimated
0.66
Usable with support 0.66
The pictogram works with labels or context. The estimate applies to this pictogram, this meaning, and this public context.
Last Reviewed
Jun 24, 2026
[ SCORE SCALE ]
The Public Verdict Has A Range.
The level explains the estimated context. It is not a certification.
0.80-1.00
Strong clarity
The pictogram communicates well in this context.
Use it, then keep testing with real users.
0.65-0.79
Usable with support
Current report
The pictogram works with labels or context.
Pair it with text and monitor interpretation.
0.50-0.64
Needs intervention
The pictogram carries meaningful clarity risk.
Improve the symbol before relying on it.
0.00-0.49
Not reliable
The pictogram does not communicate enough alone.
Replace it or add strong alternative support.
[ CONVERGENCE PROFILE ]
Where Meaning Converges.
The profile compares visual evidence, semantic extraction, cultural recognition, time, and cognitive context. It describes estimated convergence, not universal validity.
Convergent meaning profile
The radar shows where meaning converges. It does not certify universal validity.
Area
0.34
Balance
0.80
Perceptual
0.80
Semantic
0.59
Functional
0.61
Cultural
0.47
Temporal
0.57
Neurocognitive
0.59
Context Independence
0.63
Collective Resonance
0.45
Weakest Axis
Collective Resonance
How strongly public evidence supports shared recognition and persistence.
Strongest Axis
Perceptual Convergence
How strongly visual form survives size, blur, contrast, and detail loss.
| Axis | Score | Description |
|---|---|---|
| Perceptual Convergence | 0.80 | How strongly visual form survives size, blur, contrast, and detail loss. |
| Semantic Convergence | 0.59 | How strongly extracted meaning converges on one interpretation. |
| Functional Convergence | 0.61 | How strongly the symbol maps to the intended function. |
| Cultural Convergence | 0.47 | How strongly recognition holds across cultural evidence and assumptions. |
| Temporal Convergence | 0.57 | How strongly meaning persists over time without semantic decay. |
| Neurocognitive Convergence | 0.59 | How strongly the symbol follows AAC pictogram reading: transparent referent, concrete action, low convention load, and support. |
| Context Independence | 0.63 | How strongly meaning survives without external labels or placement cues. |
| Collective Resonance | 0.45 | How strongly public evidence supports shared recognition and persistence. |
Evidence Notes.
8 Findings Published
Evidence
Primary referent: backlight low.
Evidence
Implied function: The icon must communicate Backlight Low in a digital interface..
Evidence
Metaphor type: functional.
Evidence
Functional meaning: The icon must communicate Backlight Low in a digital interface..
Evidence
PCS total: 0.66.
Evidence
Weakest convergence axis: Collective Resonance.
Evidence
Evidence warning: Annual Wikimedia Pageviews failed for "backlight icon comprehension": HTTP 404.
Evidence
Evidence warning: Annual Wikimedia Pageviews failed for "backlight low": HTTP 404.
[ TRANSFER / METRIC CHART ]
Public evidence trend
The chart shows public evidence buckets by evidence year. Cohort breakpoints appear only when an aging referent is active.
Public evidence trend
Evidence year: 2026
Evaluation
Reference point.
X axis: Evidence year
| Evidence year | Semantic Transparency | Cultural Evidence |
|---|---|---|
| 1996 | 0.75 | 0.53 |
| 1997 | 0.76 | 0.50 |
| 1998 | 0.76 | 0.52 |
| 1999 | 0.75 | 0.51 |
| 2000 | 0.76 | 0.53 |
| 2001 | 0.76 | 0.51 |
| 2002 | 0.77 | 0.53 |
| 2003 | 0.77 | 0.56 |
| 2004 | 0.77 | 0.58 |
| 2005 | 0.77 | 0.59 |
| 2006 | 0.78 | 0.60 |
| 2007 | 0.77 | 0.61 |
| 2008 | 0.77 | 0.62 |
| 2009 | 0.76 | 0.63 |
| 2010 | 0.76 | 0.65 |
| 2011 | 0.77 | 0.65 |
| 2012 | 0.76 | 0.66 |
| 2013 | 0.77 | 0.66 |
| 2014 | 0.76 | 0.68 |
| 2015 | 0.76 | 0.68 |
| 2016 | 0.77 | 0.68 |
| 2017 | 0.76 | 0.69 |
| 2018 | 0.76 | 0.70 |
| 2019 | 0.76 | 0.71 |
| 2020 | 0.76 | 0.72 |
| 2021 | 0.74 | 0.73 |
| 2022 | 0.75 | 0.73 |
| 2023 | 0.36 | 0.76 |
| 2024 | 0.34 | 0.75 |
| 2025 | 0.35 | 0.76 |
| 2026 | 0.31 | 0.71 |
asset source
Material Symbols backlight_low SVG
Material Symbols by Google
Unofficial clarity analysis. PictoClarity is not affiliated with, endorsed by, or sponsored by Google. Material Symbols are provided by Google under their published license.
Open sourcepublic evidence
Design, development, and learning in e-Textbooks: what we learned and where we are going
OpenAlex / 2014-2014
Evidence query: backlight icon comprehension.
Open sourcepublic evidence
MISMATCH BETWEEN OLDER ADULTS’ EXPECTATION AND SMARTPHONE USER INTERFACE
OpenAlex / 2018-2018
Evidence query: backlight icon comprehension.
Open sourcepublic evidence
Designing for Situational Visual Impairments
OpenAlex / 2018-2018
Evidence query: backlight icon comprehension.
Open sourcepublic evidence
Peripheral vision and pattern recognition: A review
OpenAlex / 2011-2011
Evidence query: screen brightness recognition.
Open sourcepublic evidence
The bright side of dark matter: lncRNAs in cancer
OpenAlex / 2016-2016
Evidence query: screen brightness recognition.
Open sourcepublic evidence
Eye Movement Analysis for Activity Recognition Using Electrooculography
OpenAlex / 2010-2010
Evidence query: screen brightness recognition.
Open sourcehistorical evidence
Google Books Ngram annual buckets: backlight
Google Books Ngram / 1996-2026
Annual extraction returned 16566988 records across 27 active years.
Open sourcehistorical evidence
OpenAlex annual buckets: backlight icon comprehension
OpenAlex / 1996-2026
Annual extraction returned 82 records across 25 active years.
Open sourcehistorical evidence
Google Books Ngram annual buckets: backlight low
Google Books Ngram / 1996-2026
Annual extraction returned 0 records across 0 active years.
Open sourcehistorical evidence
OpenAlex annual buckets: backlight low
OpenAlex / 1996-2026
Annual extraction returned 13912 records across 31 active years.
Open source[ TECHNICAL SCORECARD ]
The Metrics Behind The Case.
PCS
0.66
PictoClarity Score
STS
0.59
Semantic Transparency Score
CRI
0.51
Confusion Risk Index
VRS
0.80
Visual Readability Score
PCH
1.00
Perceptual Cohesion
RTS
0.83
Readability Test Score
SRS
0.70
Scale Robustness Score
BRS
0.84
Blur Robustness Score
TCS
0.78
Target Contrast Stability
SDS
0.74
Stroke Durability Score
SFS
0.85
Silhouette Fidelity Score
NDS
1.00
Negative Detail Score
BBS
0.57
Bounding Box Balance
CPS
1.00
Compression Preservation
PDS
1.00
Pixel Density Suitability
ORS
0.85
Orientation Robustness
CAS
0.60
Color Accessibility Score
RRS
0.54
Referent Recognition Score
FAS
0.62
Functional Association Score
SOS
0.23
Semantic Obsolescence Score
CSS
0.40
Cultural Saturation Score
ERS
0.38
Evidence Reliability Score
MTS
0.41
Metaphor Transfer Score
TDS
0.35
Temporal Decay Score
GDS
0.21
Generational Divide Score
CLL
0.40
Convention Learning Load
NTR
0.48
Neurocognitive Transfer Risk
SPS
0.44
Symbol Persistence Score
OBS
0.19
Obsolescence Signal
CTS
0.00
Cohort Transfer Slope
[ RECOMMENDED NEXT ACTIONS ]
What Improves This Pictogram.
Action
Run representative user testing before publication.
Action
Keep the text label visible until semantic transparency is proven.
Action
Keep visible label support when scores sit below strong clarity.
Action
Validate interpretation with representative users before high-risk release.
[ Private testing / Admin invite ]
Request an invite for pictogram clarity screening.
Access stays invite-only during private testing.
Requests feed the admin invite queue.
Useful context helps select early pilots.