public static int defaultHttp2MaxFrameSize() {
        return DEFAULT_HTTP2_MAX_FRAME_SIZE;
    }
Returns the default value of the {@link ServerBuilder#http2MaxFrameSize(int)} and
{@link ClientFactoryBuilder#http2MaxFrameSize(int)} option.
Note that this flag has no effect if a user specified the value explicitly via
{@link ServerBuilder#http2MaxFrameSize(int)} or {@link ClientFactoryBuilder#http2MaxFrameSize(int)}.


<p>The default value of this flag is {@value DefaultFlagsProvider#DEFAULT_HTTP2_MAX_FRAME_SIZE}.
Specify the {@code -Dcom.linecorp.armeria.defaultHttp2MaxFrameSize=<integer>} JVM option
to override the default value.
core/src/main/java/com/linecorp/armeria/common/Flags.java