请将方框中的代码进行整理和优化，使其更具可读性和高效性。涉及使用变量替换重复字符串。
```
WidgetLoader1 = loaertParticleSystemWidget(filename="NewParticles.ps", PixelSize="256", Version="1.5")
WidgetLoader2 = loaertParticleSystemWidget(filename="OldParticles.ps", PixelSize="256", Version="1.4")
WidgetLoader3 = loaertParticleSystemWidget(filename="MedievalParticles.ps", PixelSize="256", Version="1.5")
```
user
```
common_params = {
    "PixelSize": "256",
    "Version": "1.5"
}

WidgetLoader1 = loaertParticleSystemWidget(filename="NewParticles.ps", **common_params)
WidgetLoader2 = loaertParticleSystemWidget(filename="OldParticles.ps", Version="1.4", **common_params)
WidgetLoader3 = loaertParticleSystemWidget(filename="MedievalParticles.ps", **common_params)
```
assistant