extension EXT_texture_sRGB
+# Specific compressed formats were not promoted to core
+ignore GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
+ignore GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
+ignore GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
+ignore GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
+# Luminance formats are deprecated
+ignore GL_COMPRESSED_SLUMINANCE_EXT
+ignore GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
+optional GL_SLUMINANCE_EXT
+optional GL_SLUMINANCE_ALPHA_EXT
+optional GL_SLUMINANCE8_EXT
+optional GL_SLUMINANCE8_ALPHA8_EXT