OpenGFX 0.4.6.1 (27 Dec 2012) ----------------------------- - Change: [Makefile] Allow to build OpenGFX also with NML 0.2.4 (and ignore gui sprite warning) OpenGFX 0.4.6 (24 Dec 2012) --------------------------- - Feature: GUI sprites for delete buttons introduced in OpenTTD r24749 - Change: [Makefile] NML version check