Fusion is one of the built-in styles that Qt ships with, and that is
generally supported in all platforms and handles custom color palettes
properly.
The color palettes have been borrowed from the Dolphin Memory Engine
buddy application.
The new styles are:
- **Fusion Light**
- **Fusion Dark Gray**
- **Fusion Dark**
A demo of each style on Windows:
| System | Light | Dark | Fusion Light | Fusion Dark Gray | Fusion Dark |
| ------ | ----- | ---- | ------------ | ---------------- | ----------- |
| <img width="1920" height="1080" alt="Dolphin Emulator System style" src="https://github.com/user-attachments/assets/7f55a19d-d9a1-43d1-a435-1e1d5b29abe2" /> | <img width="1920" height="1080" alt="Dolphin Emulator Light style" src="https://github.com/user-attachments/assets/4c70f2f9-16b8-4777-b72b-55b2dffcd1e4" /> | <img width="1920" height="1080" alt="Dolphin Emulator Dark style" src="https://github.com/user-attachments/assets/5e669477-d2a5-4d19-b2c5-a2ed9bb1e6fe" /> | <img width="1920" height="1080" alt="Dolphin Emulator Light Fusion style" src="https://github.com/user-attachments/assets/b1f95c47-0691-4809-bd74-99e913c17684" /> | <img width="1920" height="1080" alt="Dolphin Emulator Dark Gray Fusion style" src="https://github.com/user-attachments/assets/c9d30aa3-f941-4fc5-806f-d3fbd2cae0cc" /> | <img width="1920" height="1080" alt="Dolphin Emulator Dark Fusion style" src="https://github.com/user-attachments/assets/123d2125-e126-4e8c-aa42-793ded8ffacc" /> |
> [!NOTE]
> Notice that the **Light** and **Dark** styles remain available only on
> Windows due to limitations on how styles in the various platforms
> handle (or mishandle) custom color palettes.
> [!IMPORTANT]
> Due to [`KDE-511547`](https://bugs.kde.org/show_bug.cgi?id=511547),
> after having used Breeze (default style in Plasma systems), top tool
> bars in tools areas will lose their correct background color; a
> restart will be required in order to get the updated color in the main
> window.
>
> UPDATE: The issue has been fixed upstream and should be available in
> KDE Plama 6.5.3 and newer.
Introduce a new "Enable Time Tracking" checkbox in the InterfacePane UI. The checkbox is dynamically enabled or disabled based on the emulation state, preventing changes while emulation is active.
In StringUtil.h, the lambdas wrapping `Common::ToLower(char)` and `Common::ToUpper(char)` were only necessary due to the function names being overloaded.
This lets us reduce the number of USE_RETRO_ACHIEVEMENTS ifdefs in the
code base, reducing visual clutter. In particular, needing an ifdef for
each call to IsHardcodeModeActive was annoying to me. This also reduces
the risk that someone writes code that accidentally fails to compile
with USE_RETRO_ACHIEVEMENTS disabled.
We could cut down on ifdefs even further by making HardcodeWarningWidget
always exist, but that would result in non-trivial code ending up in the
binary even with USE_RETRO_ACHIEVEMENTS disabled, so I'm leaving it out
of this PR. It's not a lot of code though, so I might end up revisiting
it at some point.
