first you will need to move (copy and reselect ) theme from kodi in programs folder addons to
C:\Users\your\AppData\Roaming\Kodi\addons\
now we open xml folder and find View_52_IconWall.xml
THIS IS THE TEXT YOU WILL NEED TO PLAY WITH UNTILL YOU GET WHAT YOU LIKE
<viewtype label="31099">icon</viewtype>
<itemlayout height="380" width="540" condition="Container.Content() | Container.Content(tags) | Container.Content(playlists) | [Container.Content(studios) + System.HasAddon(resource.images.studios.white)]">
<control type="group">
<top>150</top>
<control type="image"> SIZE OF ICON BOX
<width>496</width>
<height>345</height>
<texture>dialogs/dialog-bg-nobo.png</texture>
<bordertexture border="21">overlays/shadow.png</bordertexture>
<bordersize>20</bordersize>
</control>
<control type="image"> ICON IN THE BOX
<left>120</left>
<top>20</top>
<width>220</width>
<height>274</height>
<texture fallback="DefaultStudios.png">$VAR[IconWallThumbVar]</texture>
<aspectratio>keep</aspectratio>
<align>center</align>
</control>
<control type="image">
<left>20</left>
<top>250</top>
<width>470</width>
<height>75</height>
<texture colordiffuse="border_alpha">colors/black.png</texture>
</control>
<control type="textbox">
<left>25</left>
<top>258</top>
<width>350</width>
<height>74</height>
<font>font36_title</font> CHANGE TO SUET USING FONT FROM FONT.XML
<label>$INFO[ListItem.Label]</label>
<align>center</align>
<aligny>center</aligny>
</control>
</control>
</itemlayout>
<focusedlayout height="350" width="828" condition="Container.Content() | Container.Content(tags) | Container.Content(playlists) | [Container.Content(studios) + System.HasAddon(resource.images.studios.white)]">
<control type="group">
<depth>DepthContentPopout</depth>
<animation type="Focus">
<effect type="zoom" start="100" end="112" time="200" tween="sine" easing="inout" center="auto" />
</animation>
<animation type="Unfocus">
<effect type="zoom" start="112" end="100" time="200" tween="sine" easing="inout" center="auto" />
</animation> YOU WILL NEED TO CHANG THE SETTING TO THE SAME AS YOU HAVE AT THE TOP
<top>150</top>
<control type="image">
<width>496</width>
<height>345</height>
<texture>dialogs/dialog-bg-nobo.png</texture>
<bordertexture border="21">overlays/shadow.png</bordertexture>
<bordersize>20</bordersize>
</control>
<control type="image">
<width>396</width>
<height>245</height>
<texture colordiffuse="button_focus">colors/grey.png</texture>
<bordersize>20</bordersize>
<include>Animation_FocusTextureFade</include>
</control>