vertex_alt_metacity
Edge theme modification vertex_alt_metacity with its dark edge and not the typical clear style
/usr/share/themes/Vertex_alt_metacity/metacity-1/metacity-theme-3.xml
I like this topic because it eliminates the title bar when maximizing the window, something that in the other themes I could not find, but its title bar loses color when using a dark theme, so these changes can enjoy a title bar dark with your dark theme. These colors are not compatible with clear themes, only with dark themes, for this you have to search for the ideal color using a color palette and change them in the lines that you modify.
good luck xD
file metacity-theme-3.xml
lines 13 - 21
13 <constant name="C_border_focused" value="gtk:custom(wm_border,#6d6d6d)" />
14 <constant name="C_border_unfocused" value="gtk:custom(wm_border,#6d6d6d)" />
15 <constant name="C_title_focused" value="gtk:custom(wm_title,#3c3c3e)" />
16 <constant name="C_title_focused_hilight" value="gtk:custom(wm_title_highlight,#ffffff)" />
17 <constant name="C_title_focused_hilight_dark" value="gtk:custom(wm_title_highlight_dark,#f7f7f7)" />
18 <constant name="C_title_unfocused" value="gtk:custom(wm_unfocused_title,#868686)" />
19 <constant name="C_titlebar_bg_a" value="gtk:custom(metacity_bg_a,#f7f7f7)" />
20 <constant name="C_titlebar_bg_b" value="gtk:custom(metacity_bg_b,#f3f3f5)" />
21 <constant name="C_titlebar_bg_highlight" value="shade/gtk:custom(metacity_bg_a,#f7f7f7)/1.4" />lines 198 - 204
198 <draw_ops name="titlebar_max">
199 <gradient type="vertical" x="0" y="1" width="width" height="height">
200 <color value="shade/gtk:custom(metacity_bg_a,#f7f7f7)/0.95" />
201 <color value="C_titlebar_bg_b" />
202 </gradient>
203 <tint color="C_titlebar_bg_highlight" alpha="1.0" x="0" y="0" width="width" height="1"/>
204 </draw_ops>the changes are in the colors, so that it looks like the attached image
changes in lines 16, 17, 19, 20, 21
13 <constant name="C_border_focused" value="gtk:custom(wm_border,#6d6d6d)" />
14 <constant name="C_border_unfocused" value="gtk:custom(wm_border,#6d6d6d)" />
15 <constant name="C_title_focused" value="gtk:custom(wm_title,#3c3c3e)" />
16 <constant name="C_title_focused_hilight" value="gtk:custom(wm_title_highlight,#383838)" />
17 <constant name="C_title_focused_hilight_dark" value="gtk:custom(wm_title_highlight_dark,#383838)" />
18 <constant name="C_title_unfocused" value="gtk:custom(wm_unfocused_title,#868686)" />
19 <constant name="C_titlebar_bg_a" value="gtk:custom(metacity_bg_a,#404040)" />
20 <constant name="C_titlebar_bg_b" value="gtk:custom(metacity_bg_b,#404040)" />
21 <constant name="C_titlebar_bg_highlight" value="shade/gtk:custom(metacity_bg_a,#404040)/1.4" />change in line 200
198 <draw_ops name="titlebar_max">
199 <gradient type="vertical" x="0" y="1" width="width" height="height">
200 <color value="shade/gtk:custom(metacity_bg_a,#5D5D5D)/0.95" />
201 <color value="C_titlebar_bg_b" />
202 </gradient>
203 <tint color="C_titlebar_bg_highlight" alpha="1.0" x="0" y="0" width="width" height="1"/>
204 </draw_ops>
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