## What type of PR is this? (check all applicable)
- [ ] Refactor
- [ ] Feature
- [x] Bug Fix
- [ ] Optimization
- [ ] Documentation Update
- [ ] Community Node Submission
## Have you discussed this change with the InvokeAI team?
- [ ] Yes
- [x] No, because: minor fix, let me know your thoughts
## Have you updated all relevant documentation?
- [x] Yes
- [ ] No
## Description
## Related Tickets & Documents
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- Related Issue # https://github.com/invoke-ai/InvokeAI/issues/4017
- Closes #
## QA Instructions, Screenshots, Recordings
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Please provide steps on how to test changes, any hardware or
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## Added/updated tests?
- [ ] Yes
- [x] No : Requires mps device
## [optional] Are there any post deployment tasks we need to perform?
Please test on an MPS (M1/M2) device.
Relevant code causing the error in #401701b6ec21fa/src/diffusers/schedulers/scheduling_euler_discrete.py (L263C3-L268C75)
```
self.sigmas = torch.from_numpy(sigmas).to(device=device)
if str(device).startswith("mps"):
# mps does not support float64
self.timesteps = torch.from_numpy(timesteps).to(device, dtype=torch.float32)
else:
self.timesteps = torch.from_numpy(timesteps).to(device=device)
```
- make the `SDXLConcatLink` icon match existing colors in light mode
- make the link toggle button accent color when active (its not super obvious but at least there is *some* visual difference for the button)
