[Docs] Update logos (#1638)

Author: mtfishman

Project.toml

@@ -1,7 +1,7 @@
 name = "ITensors"
 uuid = "9136182c-28ba-11e9-034c-db9fb085ebd5"
 authors = ["Matthew Fishman <[email protected]>", "Miles Stoudenmire <[email protected]>"]
-version = "0.8.9"
+version = "0.8.10"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"

README.md

@@ -28,7 +28,10 @@ calculations such as DMRG, take a look at the [ITensorMPS.jl documentation](http
 
 ## Support
 
-<img src="docs/src/assets/CCQ.png" width="20%" alt="Flatiron Center for Computational Quantum Physics logo.">
+<picture>
+  <source media="(prefers-color-scheme: dark)" width="20%" srcset="docs/src/assets/CCQ-dark.png">
+  <img alt="Flatiron Center for Computational Quantum Physics logo." width="20%" src="docs/src/assets/CCQ.png">
+</picture>
 
 ITensors.jl is supported by the Flatiron Institute, a division of the Simons Foundation.
 

docs/settings.jl

@@ -5,10 +5,16 @@ using ITensors
 # https://github.com/JuliaDocs/Documenter.jl/issues/1734
 DocMeta.setdocmeta!(ITensors, :DocTestSetup, :(using ITensors); recursive=true)
 
-readme_ccq_logo = """<img src="docs/src/assets/CCQ.png" width="20%" alt="Flatiron Center for Computational Quantum Physics logo.">"""
+readme_ccq_logo = """
+  <picture>
+    <source media="(prefers-color-scheme: dark)" width="20%" srcset="docs/src/assets/CCQ-dark.png">
+    <img alt="Flatiron Center for Computational Quantum Physics logo." width="20%" src="docs/src/assets/CCQ.png">
+  </picture>
+  """
 index_ccq_logo = """
   ```@raw html
-  <img src="assets/CCQ.png" width="20%" alt="Flatiron Center for Computational Quantum Physics logo.">
+  <img class="display-light-only" src="assets/CCQ.png" width="20%" alt="Flatiron Center for Computational Quantum Physics logo."/>
+  <img class="display-dark-only" src="assets/CCQ-dark.png" width="20%" alt="Flatiron Center for Computational Quantum Physics logo."/>
   ```
   """
 
@@ -46,7 +52,8 @@ settings = Dict(
       "HDF5 File Formats" => "HDF5FileFormats.md",
     ],
   ],
-  :format => Documenter.HTML(; assets=["assets/favicon.ico"], prettyurls=false),
+  :format =>
+    Documenter.HTML(; assets=["assets/favicon.ico", "assets/extras.css"], prettyurls=false),
   :doctest => true,
   :checkdocs => :none,
 )

docs/src/assets/CCQ-dark.png

@@ -0,0 +1,15 @@
+.display-light-only {
+    display: block;
+}
+
+.display-dark-only {
+    display: none;
+}
+
+.theme--documenter-dark .display-light-only {
+    display: none;
+}
+
+.theme--documenter-dark .display-dark-only {
+    display: block;
+}