campaign map questions

[Charge]

OK folks.. hope some of you have faced (and solved :) this problem:



dont ask where the trees are, question is how can I remove this dark 'layer' under dense forest (it's a dense forest just no trees) ??
In d_aerial_map_gr_types for dense f. was set same texture as for sparse f. or even more obviously one texture during winter; yet always game makes this...


And another small question: what this numbers in descr_climates mean? ,if anything at all - seems exactly nothing so far..

climate temperate_forest_deep
{
	colour	247 148 29
	heat	1
	winter

	strategy	summer	sparse_tree	conifer_a.cas						2
	strategy	summer	dense_tree	conifer_a_impassable.cas			3
	strategy	summer	canopy		conifer_a_canopy.cas				14

	strategy	winter	sparse_tree	conifer_a_winter.cas				7
	strategy	winter	dense_tree	conifer_a_impassable_winter.cas		6
	strategy	winter	canopy		conifer_a_canopy_winter.cas			15