CR: Waybar CSS Performance — Verification

Pre-Change Checklist

Check Status

waybar CPU usage at 50-96% (top -b -n1 | awk '/waybar/ {print $9}')

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CPU package temperature elevated (>80°C)

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style.css contains box-shadow declarations

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style.css contains infinite animation rules

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style.css contains transition: all rules

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Fan noise audibly elevated

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Post-Change Checklist

Check Status

waybar CPU usage at 0.0% (top -b -n1 | awk '/waybar/ {print "CPU:", $9"%"}')

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CPU package temperature normal (<60°C)

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No box-shadow declarations in style.css (except commented)

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No always-on infinite animation rules (conditional .urgent/.critical retained)

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No transition: all rules (specific property transitions acceptable)

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Fan noise at baseline (silent)

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Catppuccin color scheme, backgrounds, borders, and layout preserved

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All waybar modules functional (workspaces, clock, battery, network, etc.)

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custom/media module restored and working

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No CSS parse errors: waybar -l debug 2>&1 | grep -i error

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Before and After Comparison

Metric Before After

waybar CPU usage

50-96%

0.0%

CPU package temp

86°C

56°C

ACPI temp

81°C

54°C

CPU frequency

800 MHz (throttled)

Normal scaling

Fan noise

Max RPM

Baseline (silent)

 
# Verify waybar CPU usage
top -b -n1 | awk '/waybar/ {print $1, $9, $10, $12}'

# Verify thermal readings
paste <(cat /sys/class/thermal/thermal_zone*/type) \
      <(awk '{printf "%.1f°C\n", $1/1000}' /sys/class/thermal/thermal_zone*/temp)

# Verify no CSS parse errors
waybar -l debug 2>&1 | grep -i error