HANA CDS doesn't support type TINYINT

It seems to me that the Web IDE Editor doesn't seem recognize the TINYINT type in a CDS (.hdbdd) file.  The text doesn't turn into blue color.  Other type like INTEGER does turn into blue color. Do you see same issue?  I am using SP8.

In the HANA Studio, when I check the .hdbdd file, it error out with message: can not find artifact "TINYINT".  I tried "Tinyint", "TinyInt", "tinyInt" or "tinyint". None of them worked.