tree 2e58727167d9d122628b86cefbe8bd619be671e0
parent 812da1b42753fc8045cb015984ee90074e069a49
author Bing-Yi Wong <kis36205@yahoo.com.tw> 1546847856 -0800
committer Andrey Loskutov <loskutov@gmx.de> 1546874924 -0500

Bug 543027 - [GTK3] Some tooltips display in black background while some
in normal background

Casts (signed) byte to unsigned int because the data is actually
unsigned int.  If not, the data become negative int, which results in
black background.

Test strategy	Check several parts described in the Bug
JUnit Tests performed   None
Change-Id: I2ef5a2cf5b66f517fd0f722715f6fdd90cee249b
Signed-off-by: Bing-Yi Wong <kis36205@yahoo.com.tw>