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🎨 Palette: Improve image accessibility #10

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🎨 Palette: Improve image accessibility #10

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4 changes: 4 additions & 0 deletions .Jules/palette.md
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## 2025-05-20 - [Accessible Streamlit Inputs]
**Learning:** Streamlit `text_input` fields with empty strings for labels (`""`) are inaccessible to screen readers as they lack a programmatic label.
**Action:** Use `label_visibility="collapsed"` with a descriptive label string instead of an empty label to maintain visual design while ensuring accessibility.

## 2025-05-21 - [Image Accessibility]
**Learning:** Images embedded via raw HTML in Streamlit (using `st.markdown`) often lack `alt` attributes, making them inaccessible to screen readers.
**Action:** Always add `alt` attributes to `<img>` tags in raw HTML, using empty strings (`alt=""`) for decorative images and descriptive text for informative ones.
5 changes: 5 additions & 0 deletions .gitignore
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__pycache__/
*.pyc
.venv/
.pytest_cache/
.DS_Store
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4 changes: 2 additions & 2 deletions app.py
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# Add topography decoration
st.markdown("""
<div style="position: absolute; top: 0; right: 0; width: 45%; min-width: 400px; height: 300px; z-index: 1; overflow: visible; pointer-events: none;">
<img src="data:image/png;base64,{topo_base64}" style="width: 100%; height: 100%; object-fit: cover; object-position: top right;">
<img src="data:image/png;base64,{topo_base64}" alt="" style="width: 100%; height: 100%; object-fit: cover; object-position: top right;">
</div>
""".format(topo_base64=b64encode(open("assets/topography.png", "rb").read()).decode()), unsafe_allow_html=True)

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st.markdown(f"""
<div style="display: flex; justify-content: center; align-items: center; margin: 0 auto; width: 100%;">
<div style="display: flex; align-items: center; justify-content: center;">
<img src="data:image/png;base64,{avatar_base64}" width="150"
<img src="data:image/png;base64,{avatar_base64}" alt="CeCe Avatar" width="150"
style="border-radius: 50%; margin-right: 20px;">
<span class="gradient-text" style="font-size: 32px; font-weight: bold; white-space: nowrap;">
CECE: YOUR CLIMATE & WEATHER AGENT
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2 changes: 1 addition & 1 deletion satellite_homepage.py
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Expand Up @@ -312,7 +312,7 @@ def create_satellite_homepage():
# Build a mock screenshot of the main interface elements
preview_logo = ""
if logo_base64:
preview_logo = f'<img src="data:image/png;base64,{logo_base64}" width="60" style="border-radius: 50%; margin-right: 12px;">'
preview_logo = f'<img src="data:image/png;base64,{logo_base64}" alt="Climate Copilot Logo" width="60" style="border-radius: 50%; margin-right: 12px;">'

st.markdown(f"""
<div style="position: relative; max-width: 900px; margin: 0 auto 40px auto;">
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