Layer-switching keys look different --instead of white font face, it's black.

[MakaraSok]

For example, in Khmer language, the special key used to switch to numeric layer is labeled as "១២៣" which is the first three numbers in Khmer. Its font face is expected to be white just like any other special keys, but it isn't. (see the screenshot below)

The same issue happens with the special key used to switch to the default layer. "កខគ" is used in place of "ABC," and it looks weird. (see the screenshot below)

[MakaraSok]

fixed