src/vs/workbench/contrib/scm/browser/scmViewPane.ts/SCMInputWidget/getInputEditorFontFamily
class SCMInputWidget:	private getInputEditorFontFamily(): string {
		const inputFontFamily = this.configurationService.getValue<string>('scm.inputFontFamily').trim();

		if (inputFontFamily.toLowerCase() === 'editor') {
			return this.configurationService.getValue<string>('editor.fontFamily').trim();
		}

		if (inputFontFamily.length !== 0 && inputFontFamily.toLowerCase() !== 'default') {
			return inputFontFamily;
		}

		return this.defaultInputFontFamily;
	}