Standard IntelliJ Java code style config for all my projects. Doesn't cover non-Java file types.

Crossroads_Java.xml

<code_scheme name="Crossroads Development" version="173">
  <option name="AUTODETECT_INDENTS" value="false" />
  <option name="OTHER_INDENT_OPTIONS">
    <value>
      <option name="USE_TAB_CHARACTER" value="true" />
    </value>
  </option>
  <JavaCodeStyleSettings>
    <option name="ENABLE_JAVADOC_FORMATTING" value="false" />
  </JavaCodeStyleSettings>
  <codeStyleSettings language="Groovy">
    <indentOptions>
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="HTML">
    <indentOptions>
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="JAVA">
    <option name="SPACE_BEFORE_IF_PARENTHESES" value="false" />
    <option name="SPACE_BEFORE_WHILE_PARENTHESES" value="false" />
    <option name="SPACE_BEFORE_FOR_PARENTHESES" value="false" />
    <option name="SPACE_BEFORE_TRY_PARENTHESES" value="false" />
    <option name="SPACE_BEFORE_CATCH_PARENTHESES" value="false" />
    <option name="SPACE_BEFORE_SWITCH_PARENTHESES" value="false" />
    <option name="SPACE_BEFORE_SYNCHRONIZED_PARENTHESES" value="false" />
    <option name="SPACE_BEFORE_CLASS_LBRACE" value="false" />
    <option name="SPACE_BEFORE_METHOD_LBRACE" value="false" />
    <option name="SPACE_BEFORE_IF_LBRACE" value="false" />
    <option name="SPACE_BEFORE_ELSE_LBRACE" value="false" />
    <option name="SPACE_BEFORE_WHILE_LBRACE" value="false" />
    <option name="SPACE_BEFORE_FOR_LBRACE" value="false" />
    <option name="SPACE_BEFORE_DO_LBRACE" value="false" />
    <option name="SPACE_BEFORE_SWITCH_LBRACE" value="false" />
    <option name="SPACE_BEFORE_TRY_LBRACE" value="false" />
    <option name="SPACE_BEFORE_CATCH_LBRACE" value="false" />
    <option name="SPACE_BEFORE_FINALLY_LBRACE" value="false" />
    <option name="SPACE_BEFORE_SYNCHRONIZED_LBRACE" value="false" />
    <option name="SPACE_BEFORE_ARRAY_INITIALIZER_LBRACE" value="true" />
    <option name="SPACE_BEFORE_ELSE_KEYWORD" value="false" />
    <option name="SPACE_BEFORE_WHILE_KEYWORD" value="false" />
    <option name="SPACE_BEFORE_CATCH_KEYWORD" value="false" />
    <option name="SPACE_BEFORE_FINALLY_KEYWORD" value="false" />
    <option name="KEEP_SIMPLE_LAMBDAS_IN_ONE_LINE" value="true" />
    <option name="KEEP_SIMPLE_CLASSES_IN_ONE_LINE" value="true" />
    <option name="IF_BRACE_FORCE" value="3" />
    <option name="DOWHILE_BRACE_FORCE" value="3" />
    <option name="WHILE_BRACE_FORCE" value="3" />
    <option name="FOR_BRACE_FORCE" value="3" />
    <indentOptions>
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="JSON">
    <option name="RIGHT_MARGIN" value="120" />
    <option name="WRAP_ON_TYPING" value="0" />
    <indentOptions>
      <option name="INDENT_SIZE" value="4" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="Python">
    <indentOptions>
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="XML">
    <indentOptions>
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="kotlin">
    <indentOptions>
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
</code_scheme>

This is a subset of the settings in https://gist.github.com/Da-Technomancer/b9a5ab70985712e0d91961fb1af0e5a0 in the IntelliJ XML format, used by going into IntelliJ Settings > Editor > Code Style > Java > Import Scheme (in the little gear menu) > IntelliJ IDEA code style XML.
This is provided in case the full .editorconfig file isn't working for whatever reason.