[Feature]: Run Widget Support Custom Background Color

[LuoHong1993]

Describe the feature

Run Widget Support Custom Background Color

Use Cases

No response

Examples/Mockups

No response

Material Theme Version

v8.10.0

IDE

IntelliJ IDEA

System Info

IntelliJ IDEA 2023.2 (Ultimate Edition)
Build #IU-232.8660.185, built on July 26, 2023
Evaluation purpose only.
Runtime version: 17.0.7+7-b1000.6 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 10.0
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 6
Registry:
    editor.focus.mode.color.light=415967
    ide.experimental.ui.inter.font=true
    ide.editor.tab.selection.animation=true
    debugger.new.tool.window.layout=true
    ide.animate.toolwindows=true
    ide.new.editor.tabs.vertical.borders=true
    ide.experimental.ui=true
    ide.balloon.shadow.size=0
    editor.focus.mode.color.dark=415967

Non-Bundled Plugins:
    com.rickykurt.plugin.vant (1.0.2)
    Dart (232.8660.129)
    Key Promoter X (2023.2.0)
    zookeeper (0.0.14)
    com.alibaba.p3c.smartfox (2.1.1)
    com.jetbrains.packagesearch.intellij-plugin (232.8660.142)
    com.shen.plugin.element (2.0)
    izhangzhihao.rainbow.brackets (2023.3.2)
    com.chrisrm.idea.MaterialThemeUI (8.10.0)
    com.mallowigi (92.0.0)
    mobi.hsz.idea.gitignore (4.5.0)

Kotlin: 232-1.9.0-IJ8660.185

[mallowigi]

What do you mean by "custom background color"?