A "one-like" and dimmer version of the Purple Horizon VSCode theme.

settings.json

"[Purple Horizon]": {
    "terminalCursor.foreground": "#1f1929",
    "editorLineNumber.activeForeground": "#1f1929",
    "sideBar.border": "#1f1929",
    "focusBorder": "#1f1929",
    "sideBarSectionHeader.border": "#1f1929",
    "editorGroup.border": "#1f1929",
    "panel.border": "#1f1929",
    "tab.border": "#1f1929",
    "tab.activeBackground": "#1f1929",
    "tab.inactiveBackground": "#1f1929",
    "tab.activeBorder": "#1f1929",
    "tab.activeModifiedBorder": "#1f1929",
    "tab.activeBorderTop": "#1f1929",
    "activityBar.background": "#1f1929",
    "titleBar.activeBackground": "#1f1929",
    "editorGroupHeader.tabsBackground": "#1f1929",
    "editorGroupHeader.tabsBorder": "#1f1929",
    "editorGroupHeader.border": "#1f1929",
    "titleBar.border": "#1f1929",
    "editor.background": "#1f1929",
    "editorLineNumber.dimmedForeground": "#1f1929",
    "sideBar.background": "#1f1929",
    "minimap.background": "#1f1929",
    "statusBar.background": "#1f1929",
    "statusBar.border": "#1f1929",
    "breadcrumb.background": "#1f1929",
    "breadcrumbPicker.background": "#1f1929",
    "editorGutter.background": "#1f1929",
    "editor.lineHighlightBackground": "#1f1929",
    "editor.lineHighlightBorder": "#1f1929",
    "panel.background": "#1f1929"
}