Opened the .kicad_pcb file with a text editor and here’s an example below. Both Graphics (accelerated) and Graphics (fallback) options are currently set to no antialiasing. I changed to subpixel antialiasing and fast antialiasing respectively and no change there with the blank background:
(kicad_pcb (version 20171130) (host pcbnew "(5.1.6-0-10_14)")
(general
(thickness 1.6)
(drawings 4)
(tracks 5)
(zones 0)
(modules 3)
(nets 4)
)
(page A4)
(layers
(0 F.Cu signal)
(31 B.Cu signal)
(32 B.Adhes user)
(33 F.Adhes user)
(34 B.Paste user)
(35 F.Paste user)
(36 B.SilkS user)
(37 F.SilkS user)
(38 B.Mask user)
(39 F.Mask user)
(40 Dwgs.User user)
(41 Cmts.User user)
(42 Eco1.User user)
(43 Eco2.User user)
(44 Edge.Cuts user)
(45 Margin user)
(46 B.CrtYd user)
(47 F.CrtYd user)
(48 B.Fab user)
(49 F.Fab user)
)
(setup
(last_trace_width 0.25)
(trace_clearance 0.2)
(zone_clearance 0.508)
(zone_45_only no)
(trace_min 0.2)
(via_size 0.8)
(via_drill 0.4)
(via_min_size 0.4)
(via_min_drill 0.3)
(uvia_size 0.3)
(uvia_drill 0.1)
(uvias_allowed no)
(uvia_min_size 0.2)
(uvia_min_drill 0.1)
(edge_width 0.05)
(segment_width 0.2)
(pcb_text_width 0.3)
(pcb_text_size 1.5 1.5)
(mod_edge_width 0.12)
(mod_text_size 1 1)
(mod_text_width 0.15)
(pad_size 1.524 1.524)
(pad_drill 0.762)
(pad_to_mask_clearance 0.05)
(aux_axis_origin 0 0)
(visible_elements FFFFFF7F)
(pcbplotparams
(layerselection 0x010fc_ffffffff)
(usegerberextensions false)
(usegerberattributes true)
(usegerberadvancedattributes true)
(creategerberjobfile true)
(excludeedgelayer true)
(linewidth 0.100000)
(plotframeref false)
(viasonmask false)
(mode 1)
(useauxorigin false)
(hpglpennumber 1)
(hpglpenspeed 20)
(hpglpendiameter 15.000000)
(psnegative false)
(psa4output false)
(plotreference true)
(plotvalue true)
(plotinvisibletext false)
(padsonsilk false)
(subtractmaskfromsilk false)
(outputformat 1)
(mirror false)
(drillshape 1)
(scaleselection 1)
(outputdirectory ""))
)
(net 0 "")
(net 1 "Net-(1K1-Pad2)")
(net 2 "Net-(1K1-Pad1)")
(net 3 "Net-(BT1-Pad2)")
(net_class Default "This is the default net class."
(clearance 0.2)
(trace_width 0.25)
(via_dia 0.8)
(via_drill 0.4)
(uvia_dia 0.3)
(uvia_drill 0.1)
(add_net "Net-(1K1-Pad1)")
(add_net "Net-(1K1-Pad2)")
(add_net "Net-(BT1-Pad2)")
)
(module LED_THT:LED_D5.0mm (layer F.Cu) (tedit 5995936A) (tstamp 5F58DB4E)
(at 122.555 109.855)
(descr "LED, diameter 5.0mm, 2 pins, http://cdn-reichelt.de/documents/datenblatt/A500/LL-504BC2E-009.pdf")
(tags "LED diameter 5.0mm 2 pins")
(path /5F58D5A3)
(fp_text reference D1 (at 1.27 -3.96) (layer F.SilkS)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text value LED (at 1.27 3.96) (layer F.Fab)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text user %R (at 1.25 0) (layer F.Fab)
(effects (font (size 0.8 0.8) (thickness 0.2)))
)
(fp_arc (start 1.27 0) (end -1.29 1.54483) (angle -148.9) (layer F.SilkS) (width 0.12))
(fp_arc (start 1.27 0) (end -1.29 -1.54483) (angle 148.9) (layer F.SilkS) (width 0.12))
(fp_arc (start 1.27 0) (end -1.23 -1.469694) (angle 299.1) (layer F.Fab) (width 0.1))
(fp_circle (center 1.27 0) (end 3.77 0) (layer F.Fab) (width 0.1))
(fp_circle (center 1.27 0) (end 3.77 0) (layer F.SilkS) (width 0.12))
(fp_line (start -1.23 -1.469694) (end -1.23 1.469694) (layer F.Fab) (width 0.1))
(fp_line (start -1.29 -1.545) (end -1.29 1.545) (layer F.SilkS) (width 0.12))
(fp_line (start -1.95 -3.25) (end -1.95 3.25) (layer F.CrtYd) (width 0.05))
(fp_line (start -1.95 3.25) (end 4.5 3.25) (layer F.CrtYd) (width 0.05))
(fp_line (start 4.5 3.25) (end 4.5 -3.25) (layer F.CrtYd) (width 0.05))
(fp_line (start 4.5 -3.25) (end -1.95 -3.25) (layer F.CrtYd) (width 0.05))
(pad 2 thru_hole circle (at 2.54 0) (size 1.8 1.8) (drill 0.9) (layers *.Cu *.Mask)
(net 1 "Net-(1K1-Pad2)"))
(pad 1 thru_hole rect (at 0 0) (size 1.8 1.8) (drill 0.9) (layers *.Cu *.Mask)
(net 3 "Net-(BT1-Pad2)"))
(model ${KISYS3DMOD}/LED_THT.3dshapes/LED_D5.0mm.wrl
(at (xyz 0 0 0))
(scale (xyz 1 1 1))
(rotate (xyz 0 0 0))
)
)
(module Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical (layer F.Cu) (tedit 59FED5CC) (tstamp 5F58DB3C)
(at 122.555 101.6)
(descr "Through hole straight pin header, 1x02, 2.54mm pitch, single row")
(tags "Through hole pin header THT 1x02 2.54mm single row")
(path /5F512D59)
(fp_text reference BT1 (at 0 -2.33) (layer F.SilkS)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text value 9V (at -3.175 1.905) (layer F.Fab)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text user %R (at 0 1.27 90) (layer F.Fab)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_line (start -0.635 -1.27) (end 1.27 -1.27) (layer F.Fab) (width 0.1))
(fp_line (start 1.27 -1.27) (end 1.27 3.81) (layer F.Fab) (width 0.1))
(fp_line (start 1.27 3.81) (end -1.27 3.81) (layer F.Fab) (width 0.1))
(fp_line (start -1.27 3.81) (end -1.27 -0.635) (layer F.Fab) (width 0.1))
(fp_line (start -1.27 -0.635) (end -0.635 -1.27) (layer F.Fab) (width 0.1))
(fp_line (start -1.33 3.87) (end 1.33 3.87) (layer F.SilkS) (width 0.12))
(fp_line (start -1.33 1.27) (end -1.33 3.87) (layer F.SilkS) (width 0.12))
(fp_line (start 1.33 1.27) (end 1.33 3.87) (layer F.SilkS) (width 0.12))
(fp_line (start -1.33 1.27) (end 1.33 1.27) (layer F.SilkS) (width 0.12))
(fp_line (start -1.33 0) (end -1.33 -1.33) (layer F.SilkS) (width 0.12))
(fp_line (start -1.33 -1.33) (end 0 -1.33) (layer F.SilkS) (width 0.12))
(fp_line (start -1.8 -1.8) (end -1.8 4.35) (layer F.CrtYd) (width 0.05))
(fp_line (start -1.8 4.35) (end 1.8 4.35) (layer F.CrtYd) (width 0.05))
(fp_line (start 1.8 4.35) (end 1.8 -1.8) (layer F.CrtYd) (width 0.05))
(fp_line (start 1.8 -1.8) (end -1.8 -1.8) (layer F.CrtYd) (width 0.05))
(pad 2 thru_hole oval (at 0 2.54) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
(net 3 "Net-(BT1-Pad2)"))
(pad 1 thru_hole rect (at 0 0) (size 1.7 1.7) (drill 1) (layers *.Cu *.Mask)
(net 2 "Net-(1K1-Pad1)"))
(model ${KISYS3DMOD}/Connector_PinHeader_2.54mm.3dshapes/PinHeader_1x02_P2.54mm_Vertical.wrl
(at (xyz 0 0 0))
(scale (xyz 1 1 1))
(rotate (xyz 0 0 0))
)
)
(module Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal (layer F.Cu) (tedit 5AE5139B) (tstamp 5F58DCB7)
(at 129.54 101.6 270)
(descr "Resistor, Axial_DIN0204 series, Axial, Horizontal, pin pitch=7.62mm, 0.167W, length*diameter=3.6*1.6mm^2, http://cdn-reichelt.de/documents/datenblatt/B400/1_4W%23YAG.pdf")
(tags "Resistor Axial_DIN0204 series Axial Horizontal pin pitch 7.62mm 0.167W length 3.6mm diameter 1.6mm")
(path /5F510ED4)
(fp_text reference 1K1 (at 3.81 -1.92 90) (layer F.SilkS)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text value R_US (at 3.81 1.92 90) (layer F.Fab)
(effects (font (size 1 1) (thickness 0.15)))
)
(fp_text user %R (at 3.81 0 90) (layer F.Fab)
(effects (font (size 0.72 0.72) (thickness 0.108)))
)
(fp_line (start 2.01 -0.8) (end 2.01 0.8) (layer F.Fab) (width 0.1))
(fp_line (start 2.01 0.8) (end 5.61 0.8) (layer F.Fab) (width 0.1))
(fp_line (start 5.61 0.8) (end 5.61 -0.8) (layer F.Fab) (width 0.1))
(fp_line (start 5.61 -0.8) (end 2.01 -0.8) (layer F.Fab) (width 0.1))
(fp_line (start 0 0) (end 2.01 0) (layer F.Fab) (width 0.1))
(fp_line (start 7.62 0) (end 5.61 0) (layer F.Fab) (width 0.1))
(fp_line (start 1.89 -0.92) (end 1.89 0.92) (layer F.SilkS) (width 0.12))
(fp_line (start 1.89 0.92) (end 5.73 0.92) (layer F.SilkS) (width 0.12))
(fp_line (start 5.73 0.92) (end 5.73 -0.92) (layer F.SilkS) (width 0.12))
(fp_line (start 5.73 -0.92) (end 1.89 -0.92) (layer F.SilkS) (width 0.12))
(fp_line (start 0.94 0) (end 1.89 0) (layer F.SilkS) (width 0.12))
(fp_line (start 6.68 0) (end 5.73 0) (layer F.SilkS) (width 0.12))
(fp_line (start -0.95 -1.05) (end -0.95 1.05) (layer F.CrtYd) (width 0.05))
(fp_line (start -0.95 1.05) (end 8.57 1.05) (layer F.CrtYd) (width 0.05))
(fp_line (start 8.57 1.05) (end 8.57 -1.05) (layer F.CrtYd) (width 0.05))
(fp_line (start 8.57 -1.05) (end -0.95 -1.05) (layer F.CrtYd) (width 0.05))
(pad 2 thru_hole oval (at 7.62 0 270) (size 1.4 1.4) (drill 0.7) (layers *.Cu *.Mask)
(net 1 "Net-(1K1-Pad2)"))
(pad 1 thru_hole circle (at 0 0 270) (size 1.4 1.4) (drill 0.7) (layers *.Cu *.Mask)
(net 2 "Net-(1K1-Pad1)"))
(model ${KISYS3DMOD}/Resistor_THT.3dshapes/R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal.wrl
(at (xyz 0 0 0))
(scale (xyz 1 1 1))
(rotate (xyz 0 0 0))
)
)
(gr_line (start 133.35 98.425) (end 133.35 116.205) (layer Edge.Cuts) (width 0.1))
(gr_line (start 118.11 98.425) (end 133.35 98.425) (layer Edge.Cuts) (width 0.1))
(gr_line (start 118.11 116.205) (end 118.11 98.425) (layer Edge.Cuts) (width 0.1))
(gr_line (start 133.35 116.205) (end 118.11 116.205) (layer Edge.Cuts) (width 0.1))
(segment (start 125.73 109.22) (end 125.095 109.855) (width 0.25) (layer F.Cu) (net 1))
(segment (start 125.73 109.22) (end 125.095 109.855) (width 0.25) (layer B.Cu) (net 1))
(segment (start 129.54 109.22) (end 125.73 109.22) (width 0.25) (layer B.Cu) (net 1))
(segment (start 122.555 101.6) (end 129.54 101.6) (width 0.25) (layer F.Cu) (net 2))
(segment (start 122.555 109.855) (end 122.555 104.14) (width 0.25) (layer F.Cu) (net 3))
)