Like MCPE-188217 and MCPE-190239, but for mangrove leaves instead of pale oak or cherry leaves.

Mangrove leaves are noticeably brighter on Bedrock Edition than Java Edition. This is because they are assigned an ambient_occlusion_exponent value of 0.80 in blocks.json instead of 1.0.

Comparison GIF:

The brightness difference is most obvious when you replace the textures of Mangrove Leaves and a normal block like Dirt with a plain, white texture (see the attached mangrove_leaf_brightness sample pack).

There is more shading applied to the Dirt than the Mangrove Leaves, despite using identical textures.

North-South

East-West

Bottom

Note: The trees in the background of these images are white because the sample pack removes foliage coloring to more easily demonstrate the shading difference.

Expected Result

Mangrove leaves on Bedrock Edition have the same shading and ambient occlusion as Java Edition.

Observed Result

Mangrove leaves on Bedrock Edition have lighter shading and ambient occlusion than Java Edition.

To Fix

Set ambient_occlusion_exponent value of mangrove_leaves to 1.0 in the resource_packs/vanilla_1.19.0/blocks.json file.