Switch logos depending on light/dark mode

Author: stefanv

content/summits/developer/2025/_index.md

@@ -25,9 +25,10 @@ We would like to thank the following institutions and projects for sponsoring th
 [[item]]
 body = '''
 {{< image >}}
-src = 'https://upload.wikimedia.org/wikipedia/commons/4/4c/Berkeley_Institute_for_Data_Science_-_Logo.png'
+lightsrc = 'BIDS-logo.svg'
+darksrc = 'BIDS-logo-dark.svg'
 alt = 'BIDS logo'
-width = 100
+height = 120
 {{< /image >}}
 '''
 
@@ -36,7 +37,7 @@ body = '''
 {{< image >}}
 src = 'https://upload.wikimedia.org/wikipedia/en/thumb/a/a4/Seal_of_the_California_Institute_of_Technology.svg/1280px-Seal_of_the_California_Institute_of_Technology.svg.png'
 alt = 'Caltech logo'
-width = 100
+height = 120
 {{< /image >}}
 '''
 
@@ -45,7 +46,7 @@ body = '''
 {{< image >}}
 src = 'https://raw.githubusercontent.com/zarr-developers/zarr-logo/refs/heads/main/zarr-pink-stacked.svg'
 alt = 'Zarr logo'
-width = 100
+height = 120
 {{< /image >}}
 '''
 
@@ -54,7 +55,7 @@ body = '''
 {{< image >}}
 src = 'https://upload.wikimedia.org/wikipedia/commons/thumb/5/56/NSF_logo.svg/1280px-NSF_logo.svg.png'
 alt = 'NSF logo'
-width = 100
+height = 120
 {{< /image >}}
 '''
 
@@ -63,7 +64,7 @@ body = '''
 {{< image >}}
 src = 'https://github.com/iris-hep/iris-hep.github.io/blob/master/assets/logos/Iris-hep-4-no-long-name.png?raw=true'
 alt = 'Iris-HEP logo'
-width = 100
+width = 130
 {{< /image >}}
 '''
 
@@ -72,14 +73,15 @@ body = '''
 {{< image >}}
 src = 'https://raw.githubusercontent.com/scikit-hep/scikit-hep.github.io/refs/heads/main/assets/images/logo.svg'
 alt = 'Scikit-HEP logo'
-width = 100
+width = 120
 {{< /image >}}
 '''
 
 [[item]]
 body = '''
 {{< image >}}
-src = 'cogs_logo.webp'
+lightsrc = 'cogs_logo.webp'
+darksrc = 'cogs_logo_dark.webp'
 alt = 'COGS logo'
 {{< /image >}}
 '''