Transparency and Right-To-Left support

I am developing an application using Java ME targeting MIDP 2.0 devices.

1. Does MIDP 2.0 support transparent PNGs and transparency ?
2. Does LWUIT support RTL开发者_高级运维 support ?

1. for MIDP 2.0 support of transparency i think it depends on the MIDP implementation
   on the actual device (mostly it doesn't).
2. yes. LWUIT latest version does support RTL.

for transparency support, the API specification for Display.numAlphaLevels() method gives quite comprehensive explanation.

Support of PNG format is specified in details in javadocs for lcdui.Image class (there's section called PNG Image Format)