Allow customizing ArgoCD Favicon #24460
Description
Summary
I propose adding a feature to allow customization of the ArgoCD Favicon
Motivation
When managing multiple Argo CD instances for different environments (e.g., development, staging,etc.. ), it can be hard to find the right ArgoCD tab in my browser because they all have the same Favicon.
With this feature, we can set a different favicon or favicon color per environment.
Proposal
I think this should be implemented by adding a new configuration key within the argocd-cm ConfigMap.
1. Custom favicon
A new key, such as ui.faviconURL, could be introduced. If this key is defined, the Argo CD UI would use the provided URL to load the favicon. If the key is not set, it would simply fall back to the default favicon to maintain existing behavior.
We could also load a favicon stored in /shared/app/custom
2. Custom favicon color
Another option can be to add ui.faviconColor to colorize the original favicon
Like this:
ui.faviconColor: #5beb34
